i Register
In some senses, cosy is marked as UK. Watch for register when choosing this word.
adj
Affording comfort and warmth; snug; social and comfortable.
Mr. Pickwick expressed the pleasure it would afford him to meet the medical fellows; and Mr. Bob Sawyer had informed him that he meant to be very cosey, and that his friend Ben was to be one of the party, they shook hands and separated
One of us must marry well; Meg didn't, Jo won't, Beth can't, yet,—so I shall, and make everything cosy all round.
Warm and comfortable.
I feel very cosy here in my bed.
noun
A padded or knit covering put on an item to keep it warm, especially a teapot or egg.
A padded or knit covering for any item (often an electronic device such as a laptop computer).
A work of crime fiction in which sex and violence are downplayed or treated humorously, and the crime and detection take place in a small, socially intimate community.
verb
To become snug and comfortable.
To become friendly with.
He spent all day cosying up to the new boss, hoping for a plum assignment.