8.1.3 Plural
Use this domain for words and affixes that indicate that there is more than one of something. Some languages, such as Indo-European languages, indicate plural with an affix. Other languages, such as Austronesian languages, use a separate word. Some languages also have words or affixes that indicate that there are two of something.
What words indicate that there is more than one of something?
-s
What words indicate that there are two of something?
pair of