简单

simple; plain; brief; uncomplicated; straightforward; easy; elementary; undemanding; simply; plainly; simplicity; easiness; simplify; make simple; keep it simple; make it simple; tout court; easy as pie

唱歌

sing; chant; carol; vocalize; sing a song; vocal; singing; song; vocalization

谐音

homophony; assonance; homophonic