zit

This term is highly informal and is typically used in casual conversation or among teenagers. It carries a slightly derogatory or clinical connotation regarding skin imperfections, making it unsuitable for professional medical contexts or formal writing, where "pimple" or "acne" would be preferred.

Because it describes a specific physical blemish, it is used as a standard countable noun. It is frequently paired with verbs of appearance or removal, such as "pop," "squeeze," or "break out."