1. a suffix or ending added to the end of a word
Usage: linguistics
2. a mathematical notation where operators follow their operands
Usage: mathematics; computer science

1. to add something to the end of a word or expression

Examples

• The postfix ‘-ly’ changes adjectives into adverbs.
• In English, ‘-ness’ is a common postfix that forms nouns.
• The calculator uses postfix notation for mathematical expressions.
• In postfix notation, ‘3 4 +’ equals 7.
• The programmer decided to postfix the variable name with a number.
• You can postfix additional characters to create unique identifiers.