Tra từ crest - Từ điển Oxford Advanced Learner 8th

crest [crest crests crested cresting] noun, verb BrE [krest] NAmE [krest]
noun

1. usually singular ~ (of sth) the top part of a hill or wave
•surfers riding the crest of the wave

2. a design used as the symbol of a particular family, organization, etc, especially one that has a long history
•the university crest
3. a group of feathers that stand up on top of a bird's head
•The male is recognizable by its yellow crest.
more at ride the crest of sth at ↑ride _v.

Word Origin:
Middle English: from Old French creste, from Latin crista ‘tuft, plume’.

Example Bank:
•They are riding the crest of the wave at the moment.
•We finally reached the crest of the ridge.
•We stood on the crest of the hill.
•The family crest consists of a crown and an eight-pointed star.
Idiom: ↑crest of a wave

verb
1. transitive ~ sth (formal)to reach the top of a hill, mountain or wave
•He slowed the pace as they crested the ridge.
•The ship crested a wave and then fell twenty feet or more.
2. intransitive (NAmE) (of a flood, wave, etc.)to reach its highest level before it falls again: (figurative)The level of debt crested at a massive $290 billion in 2009.
Verb forms:

Word Origin:
Middle English: from Old French creste, from Latin crista ‘tuft, plume’.