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Operation Terror
Operation Terror

Chapter I

Cover illustration for Operation Terror
Context Illustration Reading 1/81 · 5 lines
English subtitles · tap any word to listen 1 / 5
On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.
That was usual.
He'd slept in a sleeping bag on a mountain-flank with other mountains all around.
That was not unprecedented.
He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.
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AI-generated narration by OpenAI · Slow US English
LEARNER DICTIONARY
Archivist
/ˈɑːrkɪvɪst/
Editorial verification pending

A keeper or guardian of historical records and memories.

Operation Terror

Chapter I

Reading 1/81 · 5 reading units · Lines 1–5

Line 1
On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.
Line 2
That was usual.
Line 3
He'd slept in a sleeping bag on a mountain-flank with other mountains all around.
Line 4
That was not unprecedented.
Line 5
He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

Learner Dictionary

Oxford-style entry order: headword, part of speech, US IPA, concise definition, contextual example, audio, and collocations from this reading.

About preposition US /əˈbaʊt/

on the subject of; concerning

From this reading “On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.”

Around preposition US /ərˈaʊnd/

surrounding, or on every side of, something

From this reading “He'd slept in a sleeping bag on a mountain-flank with other mountains all around.”

Being auxiliary verb US /ˈbiːɪŋ/

the -ing form of “be”

From this reading “He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.”

Make noun US /make/

an important story-specific word used in this passage

From this reading “He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.”

Morning noun US /morning/

an important story-specific word used in this passage

From this reading “On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.”

Something pronoun US /ˈsʌmθɪŋ/

a thing, without saying which

From this reading “On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.”

Whose determiner US /huːz/

belonging to which person

From this reading “He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.”

All words in this reading · 54

Every word is available to listen to. Dictionary details are shown only when verified; these are not licensed Oxford entries.

adeterminerUS /ə/

used before a singular noun to mean one of a group, when it is not a particular one

From this reading He'd slept in a sleeping bag on a mountain-flank with other mountains all around.

aboutprepositionUS /əˈbaʊt/

on the subject of; concerning

From this reading On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.

all

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He'd slept in a sleeping bag on a mountain-flank with other mountains all around.

aroundprepositionUS /ərˈaʊnd/

surrounding, or on every side of, something

From this reading He'd slept in a sleeping bag on a mountain-flank with other mountains all around.

atprepositionUS /æt/

in or near a particular place or position

From this reading On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.

awoke

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.

bag

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He'd slept in a sleeping bag on a mountain-flank with other mountains all around.

base

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

beingauxiliary verbUS /ˈbiːɪŋ/

the -ing form of “be”

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

Boulder

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

built

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

detailed

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

eight

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.

facilities

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

forprepositionUS /fɔːr/

intended to be given to, or used by, somebody

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

HepronounUS /hiː/

a man, boy, or male animal already mentioned, as the subject

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

He'd

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He'd slept in a sleeping bag on a mountain-flank with other mountains all around.

inprepositionUS /ɪn/

inside something, or within a place, period, or state

From this reading On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.

Lake

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

line

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

Lockley

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.

makenounUS /make/

an important story-specific word used in this passage

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

map

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

measurement

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

minutes

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.

morningnounUS /morning/

an important story-specific word used in this passage

From this reading On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.

mountain-flank

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He'd slept in a sleeping bag on a mountain-flank with other mountains all around.

mountains

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He'd slept in a sleeping bag on a mountain-flank with other mountains all around.

National

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

notadverbUS /nɑːt/

used to make a word, phrase, or sentence negative

From this reading That was not unprecedented.

now

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

odd

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.

ofprepositionUS /ʌv/

belonging to, or connected with, somebody or something

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

OnprepositionUS /ɑːn/

touching and supported by a surface

From this reading On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.

other

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He'd slept in a sleeping bag on a mountain-flank with other mountains all around.

out

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.

Park

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

radar

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.

reported

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.

sleeping

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He'd slept in a sleeping bag on a mountain-flank with other mountains all around.

slept

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He'd slept in a sleeping bag on a mountain-flank with other mountains all around.

somethingpronounUS /ˈsʌmθɪŋ/

a thing, without saying which

From this reading On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.

space

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.

ThatconjunctionUS /ðæt/

used to introduce what somebody said, thought, or felt

From this reading That was usual.

thedeterminerUS /ðə/

used before a noun that is already known, already mentioned, or the only one of its kind

From this reading On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.

there

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

toparticleUS /tuː/

used before the base form of a verb to make the infinitive

From this reading On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.

twenty

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading On the morning the radar reported something odd out in space, Lockley awoke at about twenty minutes to eight.

unprecedented

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading That was not unprecedented.

usual

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading That was usual.

wasauxiliary verbUS /wɑːz/

the past form of “be” used with I, he, she, it, or a singular noun

From this reading That was usual.

wereauxiliary verbUS /wɜːr/

the past form of “be” used with you, we, they, or a plural noun

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

whosedeterminerUS /huːz/

belonging to which person

From this reading He was there to make a base line measurement for a detailed map of the Boulder Lake National Park, whose facilities were now being built.

withprepositionUS /wɪð/

in the company of; together with

From this reading He'd slept in a sleeping bag on a mountain-flank with other mountains all around.