rise and fall; stir up (water) so as to form ripples
The wheat fields undulated gracefully in the summer breeze.
Vocabulary like undulate appears on the Digital SAT in Words-in-Context questions, where you choose the word that fits a passage's meaning and tone. You can also drill this word with vocabulary flashcards.
agreement; everyone being of one mind
modest and not pretentious
not discouraged
experience; pass through
influence; be or form the base for
weaken gradually or secretly
emphasize; give extra weight to (a communication)
attempt; enter upon an activity or enterprise
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