adjectives
enjoying or affording comforting warmth and shelter especially in a small space
"a cozy nook near the fire"; "snug in bed"; "a snug little apartment"
having or fostering a warm or friendly and informal atmosphere
"had a cozy chat"; "a relaxed informal manner"; "an intimate cocktail lounge"; "the small room was cozy and intimate"
suggesting connivance
"a cozy arrangement with the police"
is similar to
close in relevance or relationship
"a close family"; "we are all...in close sympathy with..."; "close kin"; "a close resemblance"