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leaving a warship; abandoning ship

retirement from a naval post; retirement from captaincy (of a naval ship)

notice of resignation; (one's) resignation; resignation notice

seclusion; reclusion; retirement (from activities)

to exterminate; to eliminate; to eradicate; to suppress

pink; light red

retrogression; degeneration; deterioration

leaving a court

dropping out of school; withdrawal from school

expulsion from school; dismissal

leaving school (at the end of the day)

ebb tide; waning fortunes

leaving work (office, school) early

retiring voluntarily; resigning one's post (to make way for others); stepping down; bowing out

decline; one's declining fortunes; decay

(moral) decay; (social) decline; decadence; corruption; degeneration; deterioration

decline (in prosperity); falling into disuse

fading; faded colour; faded color

moving out of a dormitory

retired person; retiree

leaving work (office, school) early

早引き only

quick lookup (in a dictionary, index, etc.)

full retreat; general retreat

Baseball

out in 1-2-3 order

conservativeness; conservatism; regression; retrogression; unadventurousness

retirement (from an official position)

Buddhism

idling in one's training; backsliding; retrogression (to a lower level of religious practice)

withdrawal (from a place due to financial ruin or loss of position)

leaving (a library, museum, etc.); exiting

Physics

degeneracy; degeneration

Computing

degradation (CPU, memory, etc.)