Meaning: This sentence describes how sharing secrets can strengthen the bond between friends.
Choice of Words: "Shared" is the past participle of the verb "share", indicating an action that was completed in the past. "Secrets" is a noun that refers to information that is kept hidden from others. "Deepened" is the past tense of the verb "deepen", indicating an action that happened in the past. "Their" is a possessive pronoun that refers to the connection between the people mentioned in the sentence. "Connection" is a noun that refers to a link or relationship between two or more things.