Hard to ignite; not supporting or conveying flame.

A substance used to make an object flameproof.

Hard to ignite; not flammable.

A substance that makes an object resistant to burning.

(intransitive) To do something harmful or negative to get revenge for some harm; to fight back or respond in kind to an injury or affront. / (transitive) To repay or requite by an act of the same kind.

Having power to retain / (slang, apocope) anal-retentive

(obsolete) That which retains or confines; a restraint.

(Freudian psychology) Preoccupied with achieving perfection, order and control and with collecting, possessing, and retaining objects. / (by extension) Overly obsessive concerning small details.

In Ireland, a tax on interest from savings.

Any compound added to a food product in order to retain or enhance its colour during storage or cooking.