number, keep down (verb)

place a limit on the number of

repress, quash, keep down, subdue, subjugate, reduce (verb)

put down by force or intimidation

"The government quashes any attempt of an uprising"; "China keeps down her dissidents very efficiently"; "The rich landowners subjugated the peasants working the land"

keep down (verb)

manage not to throw up

keep down (Verb)

To repress.

keep down (Verb)

To restrain or control (a sound).

keep down (Verb)

To cause not to increase or rise.

keep down (Verb)

Not to vomit.

keep down (Verb)

To lie low. To stay concealed by not standing up