The term "G-note" refers to a specific musical note on the treble clef staff. However, there are various synonyms that can refer to this note. One common synonym is "sol" which is the name of the note in the solfege scale. Another term that is sometimes used is "treble G" to distinguish it from the G-note on the bass clef. Some musicians may refer to it as "G high" or "G upper" to indicate its location on the staff. In classical music, it may also be called "G clef" as it is the note that the treble clef symbol is centered around.