Akademik

creep up
verb
advance stealthily or unnoticed (Freq. 1)
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Age creeps up on you

Syn: ↑sneak up
Hypernyms: ↑advance, ↑progress, ↑pass on, ↑move on, ↑march on, ↑go on
Verb Frames:
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Something ——s

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Something is ——ing PP

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ˌcreep ˈup [intransitive] [he/she/it creeps up present participle creeping up past tense crept up past participle crept up] phrasal verb
to gradually become larger in number or amount

The sales figures keep creeping up.

The number of missing people has crept up to 40.

Thesaurus: to increase, or to increase somethingsynonym
Main entry: creep

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ˌcreep ˈup derived
to gradually increase in amount, price, etc

House prices are creeping up again.

Main entry:creepderived

Useful english dictionary. 2012.