thick|en «THIHK uhn», transitive verb.
to make thick or thicker: »
to thicken a wall. Mother thickens the gravy with flour.
SYNONYM(S): coagulate, congeal, condense.–v.i.
1. to become thick or thicker: »
The pudding will thicken as it cools. The weather has thickened over the Atlantic.
SYNONYM(S): coagulate, congeal, condense.2. Figurative. to become more involved or complicated: »
In the second act of the play the plot thickens.
–thick´en|er, noun.
Useful english dictionary. 2012.