accent
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8. Mathematics. a. A mark used as a superscript to distinguish among variables represented by the same symbol. b. A mark used as a superscript to indicate the first derivative of a variable.
9. A mark or one of several marks used as a superscript to indicate a unit, such as feet (′) and inches (") in linear measurement.
10. A distinctive feature or quality, such as a feature that accentuates or complements a decorative style.
11. Particular importance or interest; emphasis: The accent is on comfort. See synonyms at emphasis.
verb
accented
[Middle English, from Old French, from Latin accentus, accentuation : ad-, ad- + cantus, song (from canere, to sing).]