four plus three equals seven.
he was a new addition to the staff.
the addition of a bathroom was a major improvement.
the addition of a leap day every four years.
the addition of cinnamon improved the flavor.
the addition of flowers created a pleasing effect.
the librarian shelved the new accessions.
the summation of four and three gives seven.
there was an addition to property taxes this year.
they recorded the cattle's gain in weight over a period of weeks.