Phrasal Verbs

Keep and Let

keep at sth: continue working on sth

keep away (from): stay away

keep back: 1) stay back, 2) conceal

keep behind: make sb remain after others have left

keep sb/sth down: control

keep (oneself) from: 1) prevent from, 2) avoid

keep in with: remain friendly with

keep sb/sth off: (cause) to stay at a distance

keep on: continue

keep up with: stay level with (sb/sth)

etc...

let sth down: lengthen a garment

let sb down: disappoint

let sb off: not to punish

let on: reveal a secret

let out: make (a garment) looser, larger etc

let up: lessen, stop gradually

etc...

Please contribute your words if you would like.