chicken and hen: Chicken is genderless, hen is the female, rooster is male, and chick refers to the younglings (of either sex). Cock is short for cockerel. When a cockerel is part of a group of hens (roost) to encourage egg laying, it's called a rooster.

 

lawyer and attorney: Lawyer is a general term for a person who gives legal device and aid and who conducts suits in court. An attorney or, more correctly, an attorney-at-law, is a member of the legal profession who represents a client in court when pleading or defending a case. In the US, attorney applies to any lawyer.

 

home and house: The main difference between them is that house is more concrete. House refers to a building in which someone lives. In contrast, a home can refer either to a building or to any location that a person thinks of as the place where she lives and that belongs to her.

 

dinner and supper: Supper is a light evening meal - served in early evening if dinner is at midday or served late in the evening after an early-evening dinner. Either way, it is regarded as the last meal of the day. Dinner is the main meal of the day, served either in the evening or at midday