(transitive) To give up, surrender, or yield (e.g. a weapon), usually by placing it on the ground. / To place on the ground, e.g. a railway on a trackbed.

simple past tense of lie down

(intransitive) To assume a reclining position. / (intransitive) To be lazy or remiss. / (intransitive) To submit passively.

(US) To eat something quickly.

(idiomatic, often with 'on') To take harsh action (against), as when enforcing a law more stringently than before.

(transitive) To hit someone with a car or other vehicle and injure or kill them. / (transitive) To criticize someone or an organisation, often unfairly.

(idiomatic) To wait; to stop pursuing, stop fighting, or relax from a heightened readiness posture. / (transitive, intransitive) To withdraw or retire from a position or from a team.

(idiomatic) Thoroughly practiced, rehearsed, or understood; mastered.

(intransitive) To become less excited, intense, or angry. / (transitive) To cause to become less excited, intense, or angry.

(physics) A quark having a fractional electric charge of -1/3 and a mass of about 4 to 8 MeV. / Symbol: d