The 18th century lasted from 1 January 1701 (represented by the Roman numerals MDCCI) to 31 December 1800 (MDCCC). During the 18th century, elements of Enlightenment thinking culminated …

Mar 5, 2024 · Ordinal numbers are used to represent position or rank in a sequence, and they are usually formed by adding the suffix “-th” to the cardinal number. However, there are a few exceptions …

A Cardinal Number is a number that says how many of something there are, such as one, two, three, four, five. An Ordinal Number is a number that tells the position of something in a list, such as 1st, …

When writing ordinal numbers such as 1st, 2nd, 3rd, etc. you should use the last two letters on the word as it would be if you wrote out the whole word. Below are the ordinal numbers both written out and …

Feb 8, 2019 · 18th or 18st check which spelling is correct on WhichIsCorrect.com - Free Online English Dictionary. Definition for 18th or 18st.

18th Other forms: 18thly Definitions of 18th adjective coming next after the seventeenth in position synonyms: eighteenth

May 6, 2022 · There is no hard-and-fast rule about when to use numbers and when to use words in writing centuries, as long as you are clear and consistent.

us / eɪtˈtinθ / Add to word list (in the position of) the number 18 in a series; 18th:

Nov 27, 2025 · One of eighteen equal parts of a whole. (informal) A party to celebrate an eighteenth birthday.

coming after the seventeenth in numbering or counting order, position, time, etc; being the ordinal number of eighteen: often written 18th