= 2 × 3 × 3
= 2 × 9
= 3 × 6
= 3 + 4 + 5 + 6
1, 3, 4, 7, 11, 18, 29...
A Lucas number.
Australian rules football is played with teams of 18 players.
There are 18 holes on many golf courses.
18° Celsius is usually considered a comfortable room temperature.
The two 18 letter words 'conservationalists' and 'conversationalists' are anagrams of each other. They are the longest pair of anagrams in the English language if scientific words are excluded.
Eighteenmo is the size of a piece of paper which has been made by cutting a larger sheet of paper into 18 equal pieces. It is also the name for a size of book that has been made in the same way.
In the UK, the names of race horses can be no longer than 18 characters, including spaces.
6 circles, 12 circles, 18 stars - number patterns on a drain cover.
Under British law, when you reach the age of 18 –
- you reach the age of majority; you are an adult in the eyes of the law,
- you can vote in general and local elections,
- you can serve on a jury,
- you can buy and drink alcohol in a bar,
- you can open a bank account or Post Office Girobank account without a parent's signature.
18 equilateral triangles make a hexagon ring.