harmonise,
harmonize bring into consonance, harmony, or accord while making music or singing
descant talk at great length about something of one's interest
sing along sing with a choir or an orchestra; "Every year the local orchestra and choir perform the `Messiah' and the audience is invited to sing along"
psalm sing or celebrate in psalms; "He psalms the works of God"
minstrel celebrate by singing, in the style of minstrels
solmizate sing using syllables like `do', `re' and `mi' to represent the tones of the scale; "The voice teacher showed the students how to solmizate"
keep one's mouth shut,
keep quiet,
shut one's mouth refrain from divulging sensitive information; keep quiet about confidential information; "Don't tell him any secrets--he cannot keep his mouth shut!"
spill,
talk reduce the pressure of wind on (a sail)
divulge,
let on,
unwrap,
disclose,
reveal,
let out,
give away,
discover,
expose,
bring out,
break make known to the public information that was previously known only to a few people or that was meant to be kept a secret; "The auction house would not disclose the price at which the van Gogh had sold"; "The actress won't reveal how old she is"; "bring out the truth"; "he broke the news to her"; "unwrap the evidence in the murder case"
sing -
make a whining, ringing, or whistling sound; "the kettle was singing"; "the bullet sang past his ear"
