(obsolete) A tithe or other 10% tax or payment. / (obsolete) A tenth of something. / (obsolete) A set of ten items.

(archaic) To kill one-tenth of a group, (historical, specifically) as a military punishment in the Roman army selected by lot, usually carried out by the surviving soldiers.

To represent with numbers after a decimal point.

(countable) A number expressed in the base-ten system, (particularly) a fractional numeral written in this system. / (informal, uncountable) The decimal system itself. / (informal) A decimal place.

(arithmetic, computing) Concerning numbers expressed in decimal or mathematical calculations performed using decimal.

(historical, law, obsolete) Synonym of tithing (a division of the hundreds of medieval England)

(historical) A French coin minted from 1795 to 1801 and from 1814 to 1815, valued at one-tenth of a franc. / (informal) A 10-centime coin, minted up to 1999 and bearing the same value.

plural of decim

(obsolete) A tenth, (particularly) a tithe or tax of one-tenth.

(uncommon) A decimeter.