To write or cut (words) onto (something, especially a hard surface, or a book to be given to another person); to engrave.
To draw a circle, sphere, etc. inside a polygon, polyhedron, etc. and tangent to all its sides.
To include (e.g. a certain word or phrase) into a sentence discreetly
To enter discreetly
To play a subtle pass into someone in a goalscoring position.