Noah Webster's 1828 American Dictionary of the English Language is regarded by many as the finest English
dictionary ever published. The dictionary is available in many forms. I made the content available here for my own purposes,
out of personal admiration for this particular dictionary.
LA, exclam. [perhaps corrupted from look, but this is doubtful.] Look; see; behold. LA, in music, the syllable by which Guido denotes the last sound of each hexachord.