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Synonyms

accord, alliance, compact, convention, covenant, pact; also bargain, charter, contract, deal, settlement, understanding

1treble noun 1 : the highest of the four voice parts in vocal music : SOPRANO

2 : a high-pitched or shrill voice or sound

3 : the upper half of the musical pitch range

2treble adjective 1 : triple in number or amount

2 : relating to or having the range of a musical treble

3 : high-pitched : SHRILL

— tre·bly adverb

Synonyms

[1] threefold, tripartite, triple—more at TRIPLE

[3] acute, sharp, shrill, squeaky—more at SHRILL

3treble verb tre·bled; tre·bling : to make or become three times the size, amount, or number

1tree noun 1 : a woody perennial plant usu. with a single main stem and a head of branches and leaves at the top

2 : a piece of wood adapted to a particular use

3 : something resembling a tree

— tree·less adjective

2tree verb treed; tree·ing : to drive to or up a tree <~ a raccoon>

tree farm noun : an area of forest land managed to ensure continuous commercial production

tree frog noun : any of numerous usu. tree-dwelling amphibians with adhesive disks on the toes

tree line noun : TIMBERLINE

tree of heaven : a Chinese ailanthus widely grown as an ornamental tree

tree surgery noun : operative treatment of diseased trees esp. for control of decay

— tree surgeon noun

tre·foil noun 1 : an herb (as a clover) with leaves that have three leaflets

2 : a decorative design with three leaflike parts

1trek verb trekked; trek·king 1 chiefly southern Africa : to travel or migrate by ox wagon

2 : to make one's way arduously

Synonyms

journey, tour, travel, voyage—more at TRAVEL

2trek noun 1 chiefly southern Africa : a migration esp. of settlers by ox wagon

2 : a slow or difficult journey

Synonyms

expedition, journey, passage, peregrination, trip—more at JOURNEY

1trellis noun [ORIGIN: ME trelis, fr. AF treleis, fr. OF treille arbor, fr. L trichila summerhouse]

: a frame of latticework used esp. to support climbing plants

2trellis verb : to provide with a trellis; especially : to train (as a vine) on a trellis

trem·a·tode noun : any of a class of parasitic worms

1tremble verb trem·bled; trem·bling 1 : to shake involuntarily (as with fear or cold) : SHIVER

2 : to move, sound, pass, or come to pass as if shaken or tremulous

3 : to be affected with fear or doubt

2tremble noun : a spell of shaking or quivering

Synonyms

quiver, shiver, shudder—more at SHIVER

tre·men·dous adjective 1 : causing dread, awe, or terror : TERRIFYING

2 : unusually large, powerful, great, or excellent

Synonyms

colossal, enormous, giant, gigantic, huge, mammoth, massive, monstrous, monumental, prodigious, titanic

tre·men·dous·ly adverb : to a tremendous degree or extent

Synonyms

broadly, considerably, greatly, hugely, largely, massively, monstrously, much, sizably, stupendously, utterly, vastly—more at GREATLY

trem·o·lo noun, plural -los [ORIGIN: It]

: a rapid fluttering of a tone or alternating tones

trem·or noun 1 : a trembling or shaking esp. from weakness, emotional stress, or disease

2 : a quivering motion of the earth (as during an earthquake)

trem·u·lous adjective 1 : marked by trembling or tremors

2 : TIMOROUS, TIMID

— trem·u·lous·ly adverb

Synonyms

shaky, wobbly—more at SHAKY

1trench noun [ORIGIN: ME trenche track cut through a wood, fr. MF, act of cutting, fr. trenchier to cut, prob. fr. (assumed) VL trinicare to cut in three, fr. L trini three each]

1 : a long narrow cut in the ground : DITCH; especially : a ditch protected by banks of earth and used to shelter soldiers

2 plural : a place or situation likened to warfare conducted from trenches

3 : a long narrow steep-sided depression in the ocean floor

Synonyms

dike, ditch, gutter—more at DITCH

2trench verb 1 : to cut or dig trenches in

2 : to protect (troops) with trenches

3 : to come close : VERGE

tren·chant adjective 1 : vigorously effective; also : CAUSTIC