存在【そんざい】
existence, being, presence
保存【ほぞん】
preservation, conservation, storage, maintenance, saving (e.g. to disk)
依存【いぞん】
dependence, reliance
生存【せいぞん】
existence, being, survival, to exist, to live, to survive
存続【そんぞく】
continuance, survival, persistence, retention, duration
共存【きょうぞん】
coexistence
ご存知【ごぞんじ】
knowing, being aware (of), (an) acquaintance
存じる【ぞんじる】
to know, to be aware (of), to be acquainted (with), to think, to consider, to believe, to feel
思う存分【おもうぞんぶん】
to one's heart's content, to one's complete satisfaction, as much as one likes, heartily, thoroughly, without restraint, to the full