[adverb] 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"
[adverb] in a close manner; "the two phenomena are intimately connected"; "the person most nearly concerned" Synonyms:intimately, nearly
[adverb] in an attentive manner; "he remained close on his guard" Synonyms:close, tight