one can only spend as much as one can afford; one should not over stretch beyond their limits / power / abilities; to not bite off more than one can chew [colloquial]

beanie (apparel)

tweed caps

the name of a place in Hong Kong: Tai Mo Shan

a woman's hat [written and colloquial]

noun; beret cap

hat

Maofengshan, place in Guangzhou, China

verb; to put on the square academic cap, meaning to graduate from university or college

wear a hat

(slang) someone's wife or husband has an affair; to make a cuckold of somebody

to say nice things about one insincerely (spoken)

label

get rid of the label

a bamboo hat varnished with tung oil

shower cap

the breathing apparatus squad for the firemen [written and colloquial]

(noun) a cowboy hat

(verb) to flatter; to butter up

green hat

a Santa hat

straw hat

Police Tactical Unit (PTU)

cloakroom

an army cap; a shako

keycap

a rain hat / hood

a trooper fur hat; a trooper winter hat; an ushanka-hat; a snow hat

top-hat; the hat; that hat; this hat

cricket-cap; baseball cap