We'd like to use analytics cookies to understand which symbols people look up, so we know what to research next. They are not used for advertising and we set none of them unless you say yes. What we store.
Straight slanted ticks for feet, inches, minutes and seconds.
Also known as: Foot and inch marks, Minute and second marks, Tick marks after a number
Two marks that are not apostrophes and not quotation marks, though they are set as both constantly. A single prime marks feet or arcminutes, a double prime inches or arcseconds, and both lean where a quotation mark curls.
A single prime marks feet, arcminutes or minutes of time; a double prime marks inches, arcseconds or seconds. Both follow the number without a space.
In mathematics the prime marks a derived or related quantity — x′ against x — and is read 'prime' rather than as a unit.
Straight and slanted, where a quotation mark is curled and handed. Setting 6′ 2″ with quotation marks is the commonest substitution in the language, and the reverse — a quotation opened with a prime — is nearly as common.
Both marks are on the keyboard only as the straight typewriter tick, which is neither.
One or two short straight strokes raised to the top of the line and leaning to the right, set immediately after a numeral.
A prime is a straight slanted tick and a quotation mark is a curled one; the two are constantly substituted for each other.