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1. my first is a word that means to go or to come into a place, but you should omit the second letter "e"
my second is a word with the meaning "one time", but you should replace "o" with "a"
my whole is the opposite of the word exit

2. my first is a round metal container used for cooking
my second is the synonym of the verb "to attempt"
my whole is a small room where something is kept