Is “Trill” a Scrabble word?

1. 1.A rapid alternation between an indicated note and the one above it, in musical notation usually indicated with the letters tr written above the staff.

2. 2.A type of consonantal sound that is produced by vibrations of the tongue against the place of articulation: for example, Spanish rr.

3. 3.A tremulous high-pitched vocal sound produced by cats.

1. 1.To create a trill sound; to utter trills or a trill; to play or sing in tremulous vibrations of sound; to have a trembling sound; to quaver.

2. 2.To impart the quality of a trill to; to utter as, or with, a trill.

   “to trill a note, or the letter r”

Synonyms: roll