7th

7th is the ordinal form of the number seven, used to denote position, order, or designation in a sequence. It is written as 7th in numerals and as “seventh” in words, formed by adding the suffix -th to the cardinal seven. In English, most ordinals take -th, with a few common irregulars for 1, 2, and 3 (and 11th–13th also adopting -th).

In calendars and dates, 7th appears as a way to indicate a specific day, month, or year sequence. The modern Gregorian calendar places July as the seventh month, a name derived from Julius Caesar; the month was originally Quintilis in the Roman calendar before reforms.

In urban labeling, “7th” is widely used for streets, avenues, wards, and other numbered districts (for example, 7th Street or 7th Avenue). The form also appears in edition numbers (the 7th edition), in lists and rankings (the 7th place), and in various formal identifiers.

In music theory, a seventh refers to an interval spanning seven diatonic scale degrees, as in a major seventh or the dominant seventh chord. The concept also appears in literature, organizations, and institutional naming to denote the seventh item or level within a defined sequence.

Overall, 7th functions as a standard ordinal label across languages and disciplines, reflecting the universal practice of indexing elements in order.