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41.
From the Origin:
1635–45; < It trillo quaver or warble in singing ≪
Gmc; cf. D give trillen to vibrate, late ME trillen to shake or rock (something)
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verb (used with object)

1. to sing or play with a vibratory or quavering effect.

2. Phonetics. to produce (a sound) with a trill.

3. (of birds, insects, etc.) to sing or utter in a succession of rapidly alternating sounds.

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verb (used without object)

4. to resound vibrantly, or with a rapid succession of sounds, as the voice, song, or laughter.

5. to utter or make a sound or succession of sounds resembling such singing, as a bird, frog, grasshopper, or person laughing.

6. to execute a shake or trill with the voice or on a musical instrument.

7. Phonetics. to execute a trill, esp. with the tongue, as while singing, talking, or whistling.

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noun

8. the act or sound of trilling.

9. Music. a rapid alternation of two adjacent tones; a shake.

10. a similar sound, or succession of sounds, uttered or made by a bird, an insect, a person laughing, etc.

11. Phonetics.
a. a sequence of repetitive, rapid, vibratory movements produced in any free articulator or membrane by a rush of air expelled from the lungs and often causing a corresponding sequence of contacts between the vibrating articulator and another organ or surface.

b. a speech sound produced by such a trill.
’if we can discover the meaning in the trilling of a frog,
perhaps we may understand why it is for us not merely noise but a song of poetry and emotion.’

adrian forsyth
by citypix November 11, 2009
 
15.
True and Real
Imma Lil Trill Nigga and I always keep a pistol
by LiL RiLL August 31, 2009
 
16.
Trills is a noun that represents nothing and everything. One says Trills simply whenever something good happens usually involving getting ass or smokin weed, but is not limited to those. Its derivation is arguable but most agree that its a combination of TRue and chILL.
Mike- Yo, how good was that blunt i rolled last night
Ted- Fucking sick, i got ripped out my mind
Mike- Trills.
Ted- Trills.
by Trills. November 27, 2007
 
17.
a word most commonly used by ESPN's basketball analyst Jay Bilas. This word is a combination of the words "true" and "real". Often used as an adjective to define someone that is highly respected or "extremely rad"... if you would.
swag fike amazing respected jay bilas
Jay Bilas is the trillest basketball analyst on the planet!
That fike character is so trill.
You should look up fike to understand that last trill example.
by fike1234 March 03, 2012
 
18.
Cockney Slang for Cocaine
STEWART.... Come to the toilet to pack ya beak with a boatload of trill
by HankMoody1982 May 31, 2011
 
19.
true + real = trill
1 + 1 = 2
2 + 2 = 2
true + real = trill
by KyleVA August 07, 2008
 
20.
A word used by idiotic and stupid people who cannot grasp the English language and try to be 'cool'
"That's so Trill"
"Shut the fuck up and learn some proper words you utter twat""
by annoyed anonn May 14, 2013
 
21.
ghetto as hell;not giving a fuck
that nigga over there is trill as hell for fuckin with shawty like dat!
by thathotfreshnigga October 05, 2009