Meaning of vary

(verb) become different in some particular way, without permanently losing one's or its former characteristics or essence; "her mood changes in accordance with the weather"; "The supermarket's selection of vegetables varies according to the season"

be at variance with; be out of line with

be subject to change in accordance with a variable; "Prices vary"; "His moods vary depending on the weather"

make something more diverse and varied; "Vary the menu"