Answer: thinned

AnswerCrossword Clue
THINNEDDispersed, as a crowd
THINNEDBecame sparse.
THINNEDBecame less dense.
THINNEDDiluted.
THINNEDDiluted
THINNEDGot less dense
THINNEDAdded turpentine to
thinnedTHIN, to water down
thinnedHit (a ball) above its center
thinnedMake or become less dense, crowded, or numerous
thinnedMake or become weaker or more watery
thinnedMake or become smaller in width or thickness
thinnedRemove some plants from (a row or area) to allow the others more room to grow