1. [verb] To separate from all external influence; to seclude; to withdraw.
2. [verb] To separate in order to store.
3. [verb] To set apart; to put aside; to remove; to separate from other things.
4. [verb] (chemistry) To prevent an ion in solution from behaving normally by forming a coordination compound
5. [verb] (legal) To temporarily remove (property) from the possession of its owner and hold it as security against legal claims.
6. [verb] To cause (one) to submit to the process of sequestration; to deprive (one) of one's estate, property, etc.
7. [verb] (transitive) (US) (politics) (legal) To remove (certain funds) automatically from a budget.
8. [verb] (international legal) To seize and hold enemy property.
9. [verb] (intransitive) To withdraw; to retire.
10. [verb] To renounce (as a widow may) any concern with the estate of her husband.
11. [noun] Sequestration; separation
12. [noun] (legal) A person with whom two or more contending parties deposit the subject matter of the controversy; one who mediates between two parties; a referee.
13. [noun] (medicine) A sequestrum.
14. [verb] Requisition forcibly, as of enemy property; 'the estate was sequestered'.
15. [verb] Take temporary possession of as a security, by legal authority; 'The FBI seized the drugs'; 'The customs agents impounded the illegal shipment'; 'The police confiscated the stolen artwork'.
16. [verb] Undergo sequestration by forming a stable compound with an ion; 'The cations were sequestered'.
17. [verb] Keep away from others; 'He sequestered himself in his study to write a book'.
18. [verb] Set apart from others; 'The dentist sequesters the tooth he is working on'.