#1 closely r. in 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". wn
#2 closely r. [close, tight] in an attentive manner; "he remained close on his guard". wn
#3 closely r. [intimately, nearly] in a close manner; "the two phenomena are intimately connected"; "the person most nearly concerned". wn
vizzz