thick·en /ˈθɪkən/
 (vi.)變濃,變厚,變得糢糊,變為複雜(vt.)使變厚,加強,使糢糊


 Thick·en v. t. [imp. & p. p. Thickened p. pr. & vb. n. Thickening.] To make thick (in any sense of the word). Specifically: --
 (a) To render dense; to inspissate; as, to thicken paint.
 (b) To make close; to fill up interstices in; as, to thicken cloth; to thicken ranks of trees or men.
 (c) To strengthen; to confirm. [Obs.]
    And this may to thicken other proofs.   --Shak.
 (d) To make more frequent; as, to thicken blows.


 Thick·en, v. i. To become thick. “Thy luster thickens when he shines by.”
    The press of people thickens to the court.   --Dryden.
    The combat thickens, like the storm that flies.   --Dryden.

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 thicken
      v 1: make thick or thicker; "Thicken the sauce"; "inspissate the
           tar so that it becomes pitch" [syn: inspissate] [ant:
           thin]
      2: become thick or thicker; "The sauce thickened"; "The egg
         yolk will inspissate" [syn: inspissate] [ant: thin]
      3: make viscous or dense; "thicken the sauce by adding flour"
         [syn: inspissate]