(dermatology, medicine) An area of inflamed and irritated skin characterized by reddened spots that may be filled with fluid or pus; also, preceded by a descriptive word , an illness characterized by a type of rash.

(figurative) A noun "rash" represents an irregular distribution or sprinkling of objects resembling a rash, as well as an outbreak or surge in problems.

(historical) Chiefly preceded by a descriptive word: a fabric with a smooth texture woven from silk, worsted, or a mixture of the two, intended as an inferior substitute for silk.

(transitive) Forcefully move or push someone or something in a certain direction, break something forcefully, emit or issue something hastily, or prepare something with haste.

(intransitive) Move forcefully, hastily, or suddenly; fall heavily (said of rain); collide or hit (usually followed by against, at, or upon).

Chiefly followed by away, down, off, out, etc.: to pluck, pull, or rip (something) violently.

To hack, slash, or slice (something).

(rare) Chiefly followed by out: to scrape or scratch (something); to obliterate.

Acting too quickly without considering the consequences and risks; not careful; hasty.