From Bibliotheca Anonoma

La is the sixth syllable in Solresol's alphabet. It can be represented with the written or spoken 'la', the letter 'l', the color indigo, a cresent line (in the Solresol stenography), the number 6, the musical note A (in fixed do solfège), or the sixth note of any major musical scale (in movable do solfège). It is preceded by the note sol and followed by the note si.

The word la means "The."

Four-syllable words beginning with the syllable la are generally related to "industry and commerce."

The word lala, sometimes written as LA, indicates that a verb is in the active participle tense.

Words beginning with la that are either four syllables with a repeated syllable in them or three syllables are also generally dedicated to commerce and industry.