squeal, shrill; sing, warble, twit, chant; ululate, wail, keen, whine, yammer, caterwaul.
6. channel, tube, flush, funnel, flume, hose; drain, siphon, tap.
7. pipe down Slang, be quiet, quiet down, silence, hush, shush; shut up, button one's lips, hold one's tongue, keep still, not breathe a sound, shut one's mouth.
pipe dream, n. Informal, fantasy, illusion, mirage, chimera, castle in the air; notion, vague notion, whimsy, vagary, figment of the imagination, romance; dream, daydream, reverie, vision, delusion,
piper, n. 1. horn-player, fifer, flutist, flautist, tooter, horner; bugler, oboist, clarinetist, piccoloist; trumpeter, saxophonist, bassoonist, cornettist.
2. pay the piper pay the cost, foot the bill, reckon with, account for, pay in full; bear the consequences, face the music, reap what one has sown, SI. take the rap, take the responsibility, take one's medicine,
piquancy, n. 1. spiciness, pungency, poignancy, sharpness; zest, spice, relish, tang, Inf. twang; bite, sting, edge, race, zip, SI. kick, SI. punch, Inf ginger; acidity, keenness, hotness, pepperiness, snappiness; sourness, harshness, roughness, cuttingness; mordancy, astringency, acerbity, asperity.
2. provocativeness, invitingness, bewitchery, winning ways; fascination, stimulation, provocation, attraction; appeal, interest, charm, glamor, witchery.
3. liveliness, spiritedness, spirit, vigor, vim, vehemence, pep, vitality; briskness, raciness, nippiness, crispness.
piquant, adj. 1. pungent, sharp, biting, poignant, tart, spicy; zesty, zestful, tangy, well-seasoned, snappy, with a kick; hot, acid, peppery, curried, spiced, burning; sour, harsh, rough, gamy, caustic; strong, astringent, mordant, piercing, stinging, acerb, cutting, acrid.
2. stimulating, interesting, intriguing, fascinating, captivating; attractive, appealing, alluring, winning, catching, fetching; electric, exciting, challenging, galvanizing; scintillating, tantalizing, sparkling, titillating, inviting, tempting.
3. lively, spirited, vigorous, peppy, full of pep, vehement; brisk, crisp, hearty, buoyant, mettlesome, enthusiastic; sharp, clever, smart, keen, quick-witted, fast, quick.
pique, v. 1. irritate, annoy, irk, vex, peeve, nettle, chafe, Chiefly U.S. rile, Inf. aggravate, Inf. miff, Inf. give [s.o.] a pain, Inf. get under [s.o.'s] skin, Inf get in [s.o.'s] hair, SI. bug; exasperate, ruffle, roil, disturb, perturb, disquiet, discompose, discountenance, put out, try [s.o.'s] patience, get, SI. get [s.o.'s] goat; bother, pester, harass, fret, trouble, plague, beset; torment, tease, taunt, mock, tweak, bully, bullyrag.
3. offend, affront, insult; humiliate, mortify; (all of the feelings, pride, etc.) hurt, molest, wound, sting, pain.
4. (all of the interest or curiosity) excite, arouse, rouse, stimulate, whet, stir, goad, spur, prick; interest, tantalize, titillate, tickle, attract, fascinate, SI. turn on.
5. provoke, agitate, foment, inflame, kindle, enkindle, fire, fire up, whip up, work up, stir up, wind up; incite, instigate, ignite, touch off.
-n. 6. irritation, annoyance, vexation, exasperation, Inf. aggravation; displeasure, dissatisfaction, discontent, disapproval, disapprobation.
7. anger, ire, dudgeon, high dudgeon; offense, umbrage, indignation, huff, tiff, fume, Inf. slow burn.