n. — usually plural, historical
fabric or leather straps worn over the shoulders to hold up trousers.
This term was formerly used in Canada as a preservation of British origin. Today it is solely associated with Britain (see the 1995 quotation).
See also COD-2, s.v. "brace" (2), which is marked "Cdn, Brit., Austral., & NZ", and OED-3, s.v. "brace" (n.2(9b)), AHD-5, s.v. "brace", which is marked as "chiefly British".
- 1864  Braces or suspenders, all [...] 
- 1915  WHEN BUYING SUSPENDERS
See that the Label is sewed on to the back of the Brace. 
- 1945  [...] Sir Thomas grew so enthusiastic that he lost a button holding up his suspenders ("braces" to him) and finished the concert [...] 
- 1984  "Suspenders are the only thing I have not worked in plaids," said Flusser who at the time was wearing a pair of braces depicting Tweety and Sylvester. 
- 1995  [...] thrice-divorced King's third wife Sharon -- "we remain close'' -- suggested he wear suspenders, which he calls braces, in British terminology. 
- 2006  [...] a man who "wears braces and sock suspenders, stays in gentlemen's clubs when in London and calls secretaries 'typists.' " 
- 2012  Black Tie - Often referred to as a 'tuxedo,' this consists of a black dinner jacket (white during the summer months is acceptable) with black trousers with a silk stripe, crisp white pleated shirt, black bow tie and cummerbund, black shoes (patent leather, preferably), black socks (silk or cotton), braces (suspenders), no belt. Never worn before 5 p.m.