English Antonyms Practice Test 1

Jettison : abandon or discard (someone or something that is no longer wanted).
Rejoice : feel or show great joy or delight.
Surrender : stop resisting to an enemy or opponent and submit to their authority.
Accept : consent to receive or undertake (something offered).
Defend : resist an attack made on (someone or something); protect from harm or danger.

Antonym of Jettison is Accept