DICT.TW Dictionary Taiwan

 sweet·en /ˈswitṇ/
 (vt.)使變甜,加糖于,使悅耳,使溫和,減輕(vi.)變甜

 Sweet·en, v. i. To become sweet.
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 Sweet·en v. t. [imp. & p. p. Sweetened p. pr. & vb. n. Sweetening.]
 1. To make sweet to the taste; as, to sweeten tea.
 2. To make pleasing or grateful to the mind or feelings; as, to sweeten life; to sweeten friendship.
 3. To make mild or kind; to soften; as, to sweeten the temper.
 4. To make less painful or laborious; to relieve; as, to sweeten the cares of life.
    And sweeten every secret tear.   --Keble.
 5. To soften to the eye; to make delicate.
    Correggio has made his memory immortal by the strength he has given to his figures, and by sweetening his lights and shadows, and melting them into each other.   --Dryden.
 6. To make pure and salubrious by destroying noxious matter; as, to sweeten rooms or apartments that have been infected; to sweeten the air.
 7. To make warm and fertile; -- opposed to sour; as, to dry and sweeten soils.
 8. To restore to purity; to free from taint; as, to sweeten water, butter, or meat.

 sweeten
      v 1: make sweeter in taste [syn: dulcify, edulcorate, dulcorate]
           [ant: sour]
      2: make sweeter, more pleasant, or more agreeable; "sweeten a
         deal"