- Add-on building - Building addition - Extension - Extension to a building - Heard a former lover in the side building - New wing built for a former partner, apparently - Side building
- Added piece - Drawing out - Expansion - Former stress of building addition - Model’s hairpiece - Rooms added on to a building - The act of extending or the state of being extended;
a stretching out; enlargement in breadth or continuation of length;
increase; augmentation; expansion.
- A calculated operation - Besides, in ... to - House extension - Maths operation - The act of adding two or more things together; -- opposed
to subtraction or diminution. - Anything added; increase; augmentation; as, a piazza is
an addition to a building. - That part of arithmetic which treats of adding numbers.