1) Certain church singer 2) Chorister 3) Church figure 4) Do-gooder 5) Occupation in music 6) Singer in a loft 7) Small singer in a loft 8) Sunday singer 9) Tenor 10) Young church singer 11) Young hymn singer 1) Chorister 
A choirboy is a boy member of a choir, also known as a treble. As a derisive slang term, it refers to a do-gooder or someone who is morally upright, in the same sense that `Boy Scout` (also derisively) refers to someone who is considered honorable or conscientious. == History == The use of choirboys in Christian liturgical music can be traced ba.....
Choirboy is America slang for an innocent, naive young man.
[n] - a boy who sings in a choir
noun a boy who sings in a choir
a boy who sings in a choir, esp. a church choir.