The act of penetrating something.
Specifically, the insertion of the penis (or similar object) during sexual intercourse.
The act of penetrating a given situation with the mind or faculties; perception, discernment.
A number or fraction that represents how many cards/decks will be dealt before shuffling, in contrast to the total number of cards/decks in play.
The proportion of the target audience who buy the advertised product or service.
The act of scarifying: raking the ground harshly to remove weeds, etc.
A medieval form of penance in which the skin was damaged with a knife or hot iron.
A route of administration for some vaccinations and tests: rather than hypodermic injection, the site is inoculated intradermally not with any injection but rather only with small, shallow pricks or scratches; the needle is not hollow.
The scratching, etching, burning / branding, or superficially cutting designs, pictures, or words into the skin as a permanent body modification.