1st is an ordinal numeral abbreviation for "first". It denotes the initial position in a sequence, series, or ranking, or the primary instance of something.
Etymology The term "first" originates from the Old English fyrst, meaning "foremost, earliest, original". The "-st" suffix is commonly used to form ordinal numbers, particularly for "first", similar to "second" (2nd) and "third" (3rd), after which the "-th" suffix is generally used (e.g., 4th, 5th).
Usage "1st" is widely used across various contexts:
- Numerical Order: To indicate the primary or initial item in a list or sequence (e.g., "the 1st entry," "1st place in a race").
- Temporal Sequence: To refer to the beginning of a period, event, or the initial occurrence (e.g., "the 1st of January," "the 1st time I met her").
- Rank and Quality: To signify the highest level of achievement, quality, or importance (e.g., "a 1st-class degree," "she finished 1st in her category").
- Dates: Commonly used in dates (e.g., "May 1st," "January 1st").
- Military and Organizational Designations: Often used in the naming of military units, divisions, or other organizational structures to denote their foundational or primary status (e.g., "the 1st Infantry Division").
- Academic Grades: In some grading systems, "1st" or "first-class honours" denotes the highest academic achievement for a degree.
Grammar As an abbreviation for an ordinal number, "1st" functions primarily as an adjective when preceding a noun (e.g., "the 1st floor") or as an adverb when describing the manner of an action (e.g., "he finished 1st").
Alternatives While "1st" is a standard abbreviation, the full word "first" is often preferred in formal writing or when clarity might be enhanced by spelling it out.