foam or froth made by a detergent, esp. soap, when stirred or rubbed in water, as by a brush used in shaving or by hands in washing.

foam or froth formed in profuse sweating, as on a horse.

Informal . a state of excitement, agitation, nervous tension, or the like

He was in a lather over my delay.

to form a lather

a soap that lathers well.

to become covered with lather, as a horse.

to apply lather to; cover with lather

He lathered his face before shaving.

Informal . to beat or whip.

noun

calm , peace

verb

flatten

noun

cream , foam , froth , head , soap , soapsuds , spume , suds , yeast , agitation , bustle , clamor , confusion , dither , fever , flap * , fluster , hassle , hoopla * , hubbub * , hullabaloo * , state , stew * , storm * , sweat * , tizzy , tumult , turbulence , turmoil , twitter * , perspiration , flutter , perturbation , upset

verb

beat , foam , froth , scrub , soap , wash , whip , bubble , cream , effervesce , fizz , spume , suds , yeast , perspire , agitation , bustle , commotion , fuss , hassle