Sleeper

Pronunciation: /ˈsliːpər/

Definitions of sleeper

noun a spy planted in advance for future use, but not currently active

Example Sentences

A1 I bought a sleeper sofa for my small apartment.

A2 The sleeper car on the train was surprisingly comfortable.

B1 The sleeper agent had been living undercover for years.

B2 The sleeper hit movie became a surprise box office success.

C1 The sleeper cell was discovered by authorities before they could carry out their attack.

C2 The sleeper hit TV show gained a cult following and critical acclaim.

Examples of sleeper in a Sentence

formal The train had comfortable sleeper cabins for passengers on long journeys.

informal I always prefer to book a sleeper seat on overnight flights.

slang Let's crash at my place tonight - I've got a sleeper sofa you can use.

figurative The rookie player turned out to be a sleeper pick for the team, exceeding everyone's expectations.

Grammatical Forms of sleeper

• past tense: slept
• plural: sleepers
• comparative: sleepier
• superlative: sleepiest
• present tense: sleep
• future tense: will sleep
• perfect tense: have slept
• continuous tense: is sleeping
• singular: sleeper
• positive degree: sleepy
• infinitive: to sleep
• gerund: sleeping
• participle: sleeping

Origin and Evolution of sleeper

First Known Use: 1250 year

Language of Origin: Old English

Story behind the word: The word 'sleeper' originated from Old English, where it was derived from the word 'slæpan' meaning 'to sleep'.

Evolution of the word: Over time, the word 'sleeper' evolved to refer to someone or something that is dormant or inactive, especially in the context of transportation where it came to mean a passenger who is asleep during a journey.