Answer: sob

AnswerCrossword Clue
SOBSort of sister
SOBLament loudly
SOBBreak down
SOBWeep uncontrollably
SOBTear up, and then some
SOBKind of story
SOBBawl
SOBCry hard
SOBKind of sister
SOBCry convulsively
SOBMore than whimper
SOBSound of woe
SOBType of story
SOBType of sister
SOBSad sound
SOBSound from someone who's down
SOB.. story
SOBOne may be choked back
SOBTurn on the waterworks, so to speak
SOB... sister
sobto weep with uneven catching of the breath
SOBA-hole
SOBWeep
SOBBlubber
SOBCry out loud
SOBShed tears
SOBWeep aloud
SOBWeep convulsively
SOBWeep loudly
SOBBoohoo
SOBShed a few tears
SOBCry
SOBBastard
SOBJerk, initially
SOBCry uncontrollably
SOBTotal d-bag
SOBHave a bawl
SOBBlake Edwards film of 1981
SOBReact to a tearjerker
SOBShow grief