Verb sound off has 3 senses
  1. opine, speak up, animadvert, sound off - speak one's opinion without fear or hesitation; "John spoke up at the meeting"
    --1 is one way to declare
    Sample sentence:
    Somebody ----s that CLAUSE
  2. sound off, strike up - start playing; "The musicians struck up a tune"
    --2 is one way to play
    Sample sentence:
    Somebody ----s
  3. complain, kick, plain, sound off, quetch, kvetch - express complaints, discontent, displeasure, or unhappiness; "My mother complains all day"; "She has a lot to kick about"
    Sample sentences:
    Somebody ----s
    Somebody ----s that CLAUSE
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