sweet

Concise Oxford English Dictionary © 2008 Oxford University Press:
sweet/swiːt/

▶adjective

• 1 having the pleasant taste characteristic of sugar or honey; not salty, sour, or bitter.

• 2 (of air, water, etc.) fresh, pure, and untainted.

  ■ fragrant.

• 3 pleasing in general; delightful.

  ■ working, moving, or done smoothly or easily.

  ■ melodious or harmonious.

  ■ chiefly US denoting music, especially jazz, played at a steady tempo without improvisation.

• 4 (of a person or action) pleasant and kind or thoughtful.

  ■ charming and endearing.

  ■ (sweet on) informal, dated infatuated or in love with.

  ■ dear; beloved.

  ■ archaic used as a respectful form of address.

▶noun

• 1 Brit. a small shaped piece of confectionery made with sugar.

• 2 Brit. a sweet dish forming a course of a meal; a pudding or dessert.

• 3 used as a very affectionate form of address.

• 4 (sweets) the pleasures or delights found in something.

– phrases
keep someone sweet informal keep someone well disposed towards oneself, especially by favours or bribery.
she's sweet Austral./NZ informal all is well.

– derivatives
sweetish adjective,
sweetly adverb.

– origin OE swēte, of Gmc origin.