Synonyms for crown

noun

1. The top

   apex, crest, summit; see top 1.

2. The symbol of royalty

   diadem, headdress, tiara, coronet, circlet; see also wreath.

3. The possessor of sovereign power; usually capital C

   monarch, sovereign, potentate, emperor; see king 1, queen, royalty.

4. The head

   pate, skull, noggin*; see cranium, head 1.

verb

1. To make complete or perfect

   round out, fulfill, consummate; see climax, complete 1.

2. To empower with a crown

   commission, authorize, invest, install, endow, enable, sanction, inaugurate, induct, empower, fix, dignify, coronate, enthrone, exalt, raise, set up, ennoble, anoint, establish, honor, reward; see also delegate 1, 2.

   Antonyms topple, abolish*, overthrow.

3. *To hit

   knock, strike, conk*; see hit 1.