To lose remembrance of.
To unintentionally not do, neglect.
To unintentionally leave something behind.
To cease remembering.
Euphemism for fuck, screw (a mild oath).
To become distinct or separate from what is common
To focus one's study upon a particular skill, field, topic, or genre.
To make distinct or separate due to form or function.
To narrow in scope.
To be known or notorious for some specialty.
To specify: to mention specifically.
To focus one's business upon a particular item or service.