• WordNet 3.6
    • v trill sing or play with trills, alternating with the half note above or below
    • v trill pronounce with a trill, of the phoneme `r' "Some speakers trill their r's"
    • n trill a note that alternates rapidly with another note a semitone above it
    • n trill the articulation of a consonant (especially the consonant `r') with a rapid flutter of the tongue against the palate or uvula "he pronounced his R's with a distinct trill"
    • ***
Webster's Revised Unabridged Dictionary
    • Trill (Mus) A shake or quaver of the voice in singing, or of the sound of an instrument, produced by the rapid alternation of two contiguous tones of the scale; as, to give a trill on the high C. See Shake.
    • Trill A sound, of consonantal character, made with a rapid succession of partial or entire intermissions, by the vibration of some one part of the organs in the mouth -- tongue, uvula, epiglottis, or lip -- against another part; as, the r is a trill in most languages.
    • Trill The action of the organs in producing such sounds; as, to give a trill to the tongue. d
    • v. i Trill To flow in a small stream, or in drops rapidly succeeding each other; to trickle. "And now and then an ample tear trilled down
      Her delicate cheek."
      "Whispered sounds
      Of waters, trilling from the riven stone."
    • v. t Trill To impart the quality of a trill to; to utter as, or with, a trill; as, to trill the r; to trill a note. "The sober-suited songstress trills her lay."
    • v. t Trill To turn round; to twirl. "Bid him descend and trill another pin."
    • v. i Trill To utter trills or a trill; to play or sing in tremulous vibrations of sound; to have a trembling sound; to quaver. "To judge of trilling notes and tripping feet."
    • ***
Century Dictionary and Cyclopedia
    • trill To turn round rapidly; twirl; whirl.
    • trill To roll to and fro; rock.
    • trill To throw; cast.
    • trill To pour out.
    • trill To roll.
    • trill To rock; swing to and fro; shake; quiver.
    • trill To roll down, as water; trickle.
    • trill To sound with tremulous vibrations.
    • trill To sing in a quavering manner; specifically, to execute a shake or trill.
    • trill To sing in a quavering or tremulous manner; pipe.
    • trill To pronounce with a quick vibration of the tongue; roll, as the sound of r.
    • n trill A quavering, tremulous sound; a rapid, trembling series or succession of tones; a warbling.
    • n trill In music, same as shake, 5; also, formerly, the effect now called the vibrato.
    • n trill A consonant pronounced with a trilling sound, as r.
    • ***
Chambers's Twentieth Century Dictionary
    • v.t., v.i Trill tril to shake: to utter with a tremulous vibration, to quaver: to pronounce with a quick vibration of the tongue
    • n Trill a quaver or tremulous vibration, warbling
    • v.i Trill tril to trickle:
    • v.i Trill tril (obs.) to twirl.
    • ***


Webster's Revised Unabridged Dictionary
OE. trillen, to roll, turn round; of Scand. origin; cf. Sw. trilla, to roll, Dan. trilde, Icel. þyrla, to whirl, and E. thrill,. Cf. Thrill
Chambers's Twentieth Century Dictionary
Scand., Sw. trilla, to roll.


In literature:

I faced the group and tried trilling it out the way Tweel himself did: 'T-r-r-rwee-r-rl!
"Valley of Dreams" by Stanley Grauman Weinbaum
The tone will seem pretty light and thin, but will be sweet as the trill of a bird.
"The Child-Voice in Singing" by Francis E. Howard
A last, long trill, high and pure, died away vibrating in the vases of iridescent glass.
"Sacrifice" by Stephen French Whitman
She frowned as Van Lennop's low, amused laugh, mingling with Essie Tisdale's merry trill, reached her through the open window.
"The Lady Doc" by Caroline Lockhart
Do you know the soft trilling whistle of the common Hoptoad in May?
"Woodland Tales" by Ernest Seton-Thompson
Tweel saw something, too; he was trilling and clucking away, but I scarcely heard him.
"A Martian Odyssey" by Stanley Grauman Weinbaum
Sit tight, now, and listen to the meller trill o' my bazoo.
"Owen Clancy's Happy Trail" by Burt L. Standish
All at once she broke out with a merry trill of laughter.
"The Wit and Humor of America, Volume X (of X)" by Various
It was hot weather, and insects vexed the ear with an unwearied trill.
"Country Neighbors" by Alice Brown
The shrill notes of the night-birds, the prolonged trills of the nightingales, broke the silence of the night.
"Library of the World's Best Literature, Ancient and Modern — Volume 11" by Various

In poetry:

And a' be mysel' on Craigie Hill
I spak in the Lord's ear;
"O! whan the haly bugles trill
Lat me wauken up richt here!
"Patriotism" by William Soutar
And all by myself on Craigie Hill
I spoke in the Good Lord’s ear;
“Oh when that holy bugles trill
Let me awake right here!”
"Patriotism" by William Soutar
I watched it higher and higher soar,
Still ceasing not to trill,
When, though I could descry no more
Its flight, I heard it still.
"A Question Answered" by Alfred Austin
I trilled the music o'er and o'er,
And happy, gazed upon the scene,
Thinking that there had never been
So blue a sea, so fair a shore.
"Love's Footsteps" by Frances Fuller Victor
To-night no cricket can be seen
Or heard to chirp and trill between
The pauses; and the lonely hearth
Is lonelier wanting all his mirth.
"The Cricket's Silence" by Alexander Anderson
I know not; only as I sit
And watch the firelight shadows flit,
The voice that trilled its rich delight
Last year is dumb to me to-night.
"The Cricket's Silence" by Alexander Anderson

In news:

Maybe it's the sinister guitar melody provided by producer DJ Trill Will.
Brocade 's 10GbE switches support TRILL, FCoE.
Why Trilling Matters by Adam Kirsch Yale University Press, 185 pp.
Cody performed the Sonata in G Minor "Devil's Trill" by Guiseppe Tartini (1692-1770).
Many readers of this review will be among those who feel most deeply the death of Lionel Trilling .
The O's Keep it Trill.
The Trill OG Crosses The Gumball 3000 Finish Line.
The trill is gone as Blind Mississippi Morris has items stolen.
The Thandie Newton of P-town and I plan to stay fly 'til we die just like the Dirty South's Three 6 Mafia, but we also wanna keep it trill , y'all.
Whistleblower's Trill on Iraq The Nation.
Trilling 's Sandbags: Lionel Trilling 's Critical Essays The Nation.
Across the mountains, And over the dreary, The call that trills, Brings Home the weary.
The Bell & Anchor 's food peals, chimes, trills and rings, heralding this year's catch of East End restaurants.
Toads began to trill each evening, and the nightly chorus of crickets and katydids began.

In science:

According to previous analytical analysis and numerical nonlinear studies (Lin & Papaloizou 1986; Trilling et al. 1998; Nelson et al. 2000), a Jupiter mass planet is capable of clearing most of the materials around its orbit and opening a fairly wide and deep gap in a viscous/inviscid disk.
Disk-Planet Interaction Simulations: (I) Baroclinic Generation of Vortensity and Non-Axisymmetric Rossby-Wave-Instability
Trilling (2000): the neglect of tides raised on the star.
Tidal Evolution of Close-in Extra-Solar Planets
In particular, our model assumes host stars rotate much more slowly than their close-in companion planet revolves, an assumption largely corroborated by observation (Trilling (2000); Barnes (2001)).
Tidal Evolution of Close-in Extra-Solar Planets
Trilling et al. (2002) and Armitage et al. (2002) were able to qualitatively reproduce the observed semi-ma jor axis distribution of giant planets, for a > 0.1 AU.
Astrometric Methods and Instrumentation to Identify and Characterize Extrasolar Planets: A Review
Note that Trilling et al. (1998) pointed out that the numerical coefficient in this equation is only true for bodies of uniform density, and should be corrected for the actual stellar mass profiles.
Observational Evidence for Tidal Interaction in Close Binary Systems