Adverbs

(r)closelyin a close relation or position in time or space“the onsets were closely timed”, “houses set closely together”, “was closely involved in monitoring daily progress”
(r)close, closely, tightin an attentive manner“he remained close on his guard”
(r)closely, intimately, nearlyin a close manner“the two phenomena are intimately connected”, “the person most nearly concerned”