closely (Adverb) — In a close relation or position in time or space. ex. "the onsets were closely timed" ex. "houses set closely together" ex. "was closely involved in monitoring daily progress"
closely (Adverb) — In an attentive manner. ex. "he remained closely on his guard"
closely (Adverb) — In a close manner. ex. "the two phenomena are closely connected"