落とす

to drop; to lose; to let fall; to shed (light); to cast (one's gaze); to pour in (liquid); to leave behind

to clean off (dirt, makeup, paint, etc.); to remove (e.g. stains or facial hair); to lose; to spend money at a certain place; to omit; to leave out; to secretly let escape

to lose (a match); to reject (an applicant); to fail (a course); to defeat (in an election)

to lower (e.g. shoulders or voice); to lessen (e.g. production or body weight); to worsen (quality); to reduce (e.g. rank or popularity); to speak badly of; to make light of; to fall into straitened circumstances

to fall into (e.g. a dilemma or sin); to make one's own; to have one's bid accepted; to force surrender; to take (e.g. an enemy camp or castle); to forcefully convince; to press for a confession; to deal with

Computing

to download; to copy from a computer to another medium

Martial arts

to make someone swoon (judo)

to finish a story (e.g. with the punch line)

to finish (a period, e.g. of fasting)

Colloquial

to win over; to seduce; to conquer (unwillingness)