keep down

(verb) place a limit on the number of. Synonyms: number, keep down.

(verb) put down by force or intimidation. Synonyms: repress, quash, keep down, subdue, subjugate, reduce. Examples: "The government quashes any attempt of an uprising." "China keeps down her dissidents very efficiently." "The rich landowners subjugated the peasants working the land."

(verb) manage not to throw up. Synonyms: keep down.