18

denoting a quantity consisting of one more than fourteen and one less than sixteen; -- representing the number fifteen as Arabic numerals

Coming next after the fourteenth in a series

Denoting a quantity consisting of one more than fifteen and one less than seventeen; -- representing the number sixteen as Arabic numerals

coming next after the fifteenth in a series

denoting a quantity consisting of one more than sixteen and one less than eighteen; -- representing the number seventeen as Arabic numerals

coming next after the sixteenth in a series

coming next after the seventeenth in a series

one more than eighteen; denoting a quantity consisting of one more than eighteen and one less than twenty; -- representing the number nineteen as Arabic numerals

coming next after the eighteenth in a series

preceding all other objects or events in order, time, or importance; occurring before all other members of a series.

a class mail comprising letters, postcards, and other mail sealed against inspection, having a higher priority than second, third, or fourth-class mail; -- it is the highest class of mail not handled in a special manner, as is registered or priority mail.

Denoting a quantity consisting of one more than one; one plus one more; -- representing the number two as an Arabic numeral