n. 25B6; verb
she slipped on the ice : SLIDE, skid, slither, glide; fall (over), lose one's balance, tumble.
the envelope slipped through Luke's fingers : FALL, drop, slide.
we slipped out by a back door : CREEP, steal, sneak, slide, sidle, slope, slink, tiptoe.
standards have slipped : DECLINE, deteriorate, degenerate, worsen, get worse, go downhill, fall (off), drop; informal go to the dogs, go to pot.
the bank's shares slipped 1.5p : DROP, go down, sink, slump, decrease, depreciate.
the hours slipped by : PASS, elapse, go by/past, roll by/past, fly by/past, tick by/past.
she slipped the map into her pocket : PUT, tuck, shove; informal pop, stick, stuff.
Sarah slipped into a black skirt : PUT ON, pull on, don, dress/clothe oneself in; change into.
she slipped out of her clothes : TAKE OFF, remove, pull off, doff; Brit. informal peel off.
he slipped the knot of his tie : UNTIE, unfasten, undo.
25B6; noun
a single slip could send them plummeting downwards : FALSE STEP, misstep, slide, skid, fall, tumble.
a careless slip : MISTAKE, error, blunder, gaffe, slip of the tongue/pen; oversight, omission, lapse, inaccuracy; informal slip-up, boo-boo, howler; Brit. informal boob, clanger, bloomer; N. Amer. informal goof, blooper, bloop.
a silk slip : UNDERSKIRT, petticoat, underslip.
25A0; give someone the slip (informal) ESCAPE FROM, get away from, evade, dodge, elude, lose, shake off, throw off (the scent), get clear of.
25A0; let something slip REVEAL, disclose, divulge, let out, give away, blurt out; give the game away; informal let on, blab, let the cat out of the bag, spill the beans; Brit. informal blow the gaff.
25A0; slip away
they managed to slip away : ESCAPE, get away, break free; informal fly the coop; Brit. informal do a bunk, do a runner; N. Amer. informal take a powder.
she slipped away in her sleep. : See die sense 1.
25A0; slip up (informal) MAKE A MISTAKE, (make a) blunder, get something wrong, make an error, err; informal make a bloomer, make a boo-boo; Brit. informal boob, drop a clanger; N. Amer. informal goof up.