General:
* Include it: This is a neutral synonym, emphasizing the act of making something part of a whole.
* Incorporate it: Similar to "include," but with a slightly stronger emphasis on integrating the element into something else.
* Append it: This suggests adding something to the end of something else.
* Attach it: This implies physically connecting something to something else.
* Combine it: This focuses on merging two or more things together.
Mathematical/Technical:
* Sum it: This specifically refers to adding numbers together.
* Calculate it: This implies a more complex mathematical operation than simply adding.
* Aggregate it: This suggests combining several items into a single total.
More informal:
* Throw it in: This is a casual way of saying "add it," often used for things that aren't essential.
* Put it in: This is a simple, straightforward way to say "add it."
* Stick it in: This is similar to "put it in," but with a slightly more forceful tone.
The best synonym for "add it" depends on the specific context.