Simplify the following text for a Grade 5 native English-speaking person.
Original: Also , there is no need to add words in plural form unless irregular , as the search interface will match ( for example ) billiards as well given a search term of billiard .
Simplified: Also , you do not need to add - s for a plural ( e.g. if you search for billiard , the search engine will match billiard and billiards ) .