English English Dictionary
- it is possible if you want it but you do not have to have it or do it in English:
1. 
optional
The word "the" is optional in this sentence.
Although it was optional, everyone wore their formal clothes.
is english your optional subject or obligatory?
In some countries, tipping a waiter isn’t optional, it’s obligatory.
He thinks Phisical Education should be optional.
An air conditioner is available as an optional extra.
English word "it is possible if you want it but you do not have to have it or do it"(optional) occurs in sets:
Japan gives its workers a break – to go shoppingother words beginning with "I"
irresponsible in Englishisland in English
issue in English
it in English
italy in English
item in English
