Meanings

going to and leaving work

inbreeding depression

leaving at the convenience of the company

voluntary resignation

retirement at the suggestion of one's employer

letter of resignation

degenerate fermions

escape

leaving a club

chasing out ogres

superior to (e.g. a professional)

coursework completed without degree

expulsion (from school)

leaving (a library, museum, etc.)

leaving a park, garden, zoo, etc.

eradication of malignant spirits (esp. used in fantasy and science fiction)

stuck-at fault (chip, circuit)

(falling into a) continuous decline

disappearance (e.g. of a symptom)

to step back