removable
Word family
Synonym discussion
Sense: adjective/1
All four words describe something that can be taken away or undone, but they apply to different domains. 'Detachable' is the closest and most common substitute — it describes physical objects fastened by clips, screws, or buttons (a detachable hood, a detachable camera lens). 'Separable' is more formal and refers to things that can be split into independent parts (separable arguments, separable verbs). 'Erasable' is restricted to marks or data that can be wiped clean (erasable pen, erasable memory). 'Dismissible' is rare and applies mostly to people who can be removed from a job. For everyday use with physical household items, 'detachable' and 'removable' are largely interchangeable, though 'removable' is broader — it covers stains on fabric, data on a drive, or a lid on a jar, while 'detachable' implies a fastener of some kind.
Common collocations
Etymology
Comes from the verb 'remove' (entering English from Old French 'removoir', from Latin 'removēre' — 're-' meaning 'back, away' and 'movēre' meaning 'to move'), with the suffix '-able' added to show possibility. The adjective 'removable' has been in English since the 1500s.