汰 - washing, sieving, filtering

not writing or contacting for a while; neglecting (failing) to write (call, visit, etc.); long silence

(imperial) words

(committing, resorting to) an act of violence

out of the question; preposterous

social selection

sexual selection

cancellation; abandonment

stupidity; absurdity; presumption; impertinence

matter for the court; (ending up as a) lawsuit; legal tussle; court fight

artificial selection

personnel reduction

bloodshed