To put numbers or amounts together to get a total.
(Oxford Advanced Learner's...
To put something together with something else so as to increase the size, number, amount,...
To increase something in size, number, amount, etc.
(Oxford Advanced Learner's Dictionary)
To make a formal speech to a group of people (by the President)
- To agree, often unwillingly, that something is true.
- To say that you have done something...