keep down

v. keep something at low level; keep under control, keep at reduced level (E.g.: "The baby is sleeping so please keep your voice down"); prevent from increasing (as to keep down the price of milk); keep a person in an inferior position as to prevent this person from advancing or succeeding; stay low, stay in a low position or place where cannot be seen; hold food or drink without throwing it up

Verb
1. place a limit on the number of
(synonym) number
(hypernym) limit, circumscribe, confine
2. 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"
(synonym) repress, quash, subdue, subjugate, reduce
(hypernym) oppress, suppress, crush
3. manage not to throw up
(antonym) vomit, vomit up, purge, cast, sick, cat, be sick, disgorge, regorge, retch, puke, barf, spew, spue, chuck, upchuck, honk, regurgitate, throw up

keep from progressing or growing, keep within limits, control The students were told to keep down the noise as some of the other classes were having exams.

Synonyms and related words:
asphyxiate, beat down, bottle up, break, browbeat, bulldoze, bully, castrate, censor, choke off, clamp down on, coerce, compel, cork, cork up, cow, crack down on, crush, damp down, daunt, deprive of freedom, despotize, disenfranchise, disfranchise, dominate, domineer, domineer over, drown, enslave, enthrall, extinguish, gag, grind, grind down, henpeck, hold captive, hold down, hold in bondage, hold in captivity, hold in leash, hold in subjection, intimidate, jump on, keep under, kill, lead captive, lord it over, make dependent, muzzle, oppress, overawe, overbear, overmaster, override, peonize, pour water on, press heavy on, put down, quash, quell, quench, repress, ride over, ride roughshod over, shut down on, silence, sit down on, sit on, smash, smother, squash, squelch, stanch, stifle, strangle, stultify, subdue, subject, subjugate, subordinate, suffocate, suppress, take captive, terrorize, throttle, trample down, trample upon, tread down, tread upon, tyrannize, tyrannize over, unman, vassalize, walk all over, walk over, weigh heavy on
  

phrv. รักษาระดับต่ำไว้, พยายามให้อยู่ด้านล่าง, กดให้ต่ำไว้ (syn. remain down, stay down, stop down); คงระดับต่ำไว้, ป้องกันไม่ให้สูงขึ้น (syn. remain down); เก็บอาหารไว้ในกระเพาะ, รับประทานอาหารได้ (syn. hold down); ควบคุมอารมณ์หรือความรู้สึก; ควบคุมด้วยการทำลาย; จำกัดอิสรภาพ (syn. bring under, get under, hold down, hold under, keep under); ทำให้หนักใจ, ทำให้อึดอัดใจ; ทำให้ไม่ได้เลื่อนชั้นเรียน (ไประดับสูงขึ้น)