(meteorology, of clouds) Obscuring one to two oktas (eighths) of the sky.
(meteorology, of rainfall with regard to a location) (US?) Having a 10 percent chance of measurable precipitation (0.01 inch); used interchangeably with isolated.
(preceded by another determiner) An indefinite, but usually small, number of.
(used alone) Not many; a small (in comparison with another number stated or implied) but somewhat indefinite number of.
There are a few cars (=some, but a relatively small number) in the street.