Nouns

(n)bracea support that steadies or strengthens something else“he wore a brace on his knee”
(n)couple, pair, twosome, twain, brace, span, yoke, couplet, distich, duo, duet, dyad, duadtwo items of the same kind
(n)pair, bracea set of two similar things considered as a unit
(n)braceeither of two punctuation marks (‘{’ or ‘}’) used to enclose textual material
(n)bracea rope on a square-rigged ship that is used to swing a yard about and secure it
(n)brace, suspender, galluselastic straps that hold trousers up
(n)brace, braces, orthodontic bracesan appliance that corrects dental irregularities
(n)brace, bitstocka carpenter's tool having a crank handle for turning and a socket to hold a bit for boring
(n)brace, bracinga structural member used to stiffen a framework

Verbs

(v)brace, poiseprepare (oneself), often but not necessarily for something unpleasant or difficult
(v)brace, steady, stabilize, stabilisesupport or hold steady and make steadfast, with or as if with a brace“brace your elbows while working on the potter's wheel”
(v)bracesupport by bracing
(v)stimulate, arouse, brace, energize, energise, perk upcause to be alert and energetic“Coffee and tea stimulate me”, “This herbal infusion doesn't stimulate”