adjective
US or Brit cosy cozier; -est
[also more ~; most ~]
small, comfortable, and warm
friendly and pleasant
often disapproving :suggesting or showing a closeness between two people, groups, businesses, etc. :very close
noun
US or Brit cosy , pl -zies
[count] :a cloth cover that is placed over a teapot to keep the tea hot
verb
US or Brit cosy -zies; -zied; -zying
cozy up
[phrasal verb] informal :to become or try to become friendly with someone in order to get help or some advantage - usually + to
