Synonyms of err in English:


See US English definition of err

See UK English definition of err


1‘the Court of Appeal ruled that the judge had erred in not allowing new evidence’

make a mistake, be wrong, be in error, be mistaken, mistake, make a blunder, blunder, be incorrect, be inaccurate, misjudge, miscalculate, get it wrong, get something wrong, get things wrong, bark up the wrong tree, get the wrong end of the stick, be wide of the mark
informal slip up, screw up, blow it, foul up, goof, fluff something, make a hash of something, put one's foot in it, make a boo-boo
British informal drop a brick, boob
British informal, dated make a bloomer
British vulgar slang bugger something up

be right

2‘she struck their fingers with a ruler when they erred’

misbehave, do wrong, go wrong, behave badly, misconduct oneself, be bad, be naughty, get up to mischief, get up to no good, act up, act badly, give someone trouble, cause someone trouble
sin, go astray, transgress, trespass, fall from grace, lapse, degenerate
clown about, clown around, fool about, fool around, act the clown, act the fool, act the goat, act foolishly, forget oneself
informal mess about, mess around
British informal muck about, muck around, play up