·noun A single thing or person.
II. Unit ·noun The least whole number; one.
III. Unit ·noun A gold coin of the reign of James I., of the value of twenty shillings.
IV. Unit ·noun A single thing, as a magnitude or number, regarded as an undivided whole.
V. Unit ·noun Any determinate amount or quantity (as of length, time, heat, value) adopted as a standard of measurement for other amounts or quantities of the same kind.