Definition of lah in English:

lah

Line breaks: lah
Pronunciation: /lɑː
 
/
(also la)

noun

Music
1(In tonic sol-fa) the sixth note of a major scale.
1.1The note A in the fixed-doh system.

Origin

Middle English: representing (as an arbitrary name for the note) the first syllable of Latin labii, taken from a Latin hymn (see solmization).

Definition of lah in: