An expression of mild admiration, wonder, or surprise, and formerly of asseveration: as, O la! that is strange.
noun.
In solmization, the syllable used for the sixth tone of the scale—that is, the submediant.
noun.
A contraction of Louisiana.
noun.
The feminine form of the definite article in French, occurring in some names and phrases used in English.
noun.
In chem., the symbol for lanthanum.