I. ˈtre-bəl noun
Etymology: Middle English, the highest part in a three-part composition, from treble, adjective
Date: 14th century
1.
a. : the highest voice part in harmonic music : soprano
b. : one that performs a treble part ; also : a member of a family of instruments having the highest range
c. : a high-pitched or shrill voice, tone, or sound
d. : the upper half of the whole vocal or instrumental tonal range — compare bass
e. : the higher portion of the audio frequency range in sound recording and broadcasting
2. : something treble in construction, uses, amount, number, or value
II. adjective
Etymology: Middle English, from Anglo-French, from Latin triplus — more at triple
Date: 14th century
1.
a. : having three parts or uses : threefold
b. : triple in number or amount
2.
a. : relating to or having the range or part of a treble
b. : high-pitched , shrill
c. : of, relating to, or having the range of treble in sound recording and broadcasting
treble frequencies
• tre·bly ˈtre-b(ə-)lē adverb
III. verb
( tre·bled ; tre·bling ˈtre-b(ə-)liŋ)
Date: 14th century
transitive verb
: to increase threefold
intransitive verb
1. : to sing treble
2. : to grow to three times the size, amount, or number