Definitions for "Thicken"
To render dense; to inspissate; as, to thicken paint.
make thick or thicker; "Thicken the sauce"; "inspissate the tar so that it becomes pitch"
become thick or thicker; "The sauce thickened"; "The egg yolk will inspissate"
Keywords:  interstices, ranks, fill, trees, cloth
To make close; to fill up interstices in; as, to thicken cloth; to thicken ranks of trees or men.
Keywords:  strengthen, confirm
To strengthen; to confirm.
Keywords:  blows, frequent
To make more frequent; as, to thicken blows.
Keywords:  sense, word
To make thick (in any sense of the word).
To become thick.