Definition: A word element that doesn't stand by itself but is attached to the beginning of a word to change its meaning. Since most of the common prefixes in English come from Latin, many of the same prefixes (or similar ones) are used in Spanish and English. They are contrasted with suffixes, which come at the end of words.
Also known as: Prefijo in Spanish.
Examples: Prefixes in the following words are in boldface: prefix (prefijo), postnatal (posnatal), antechamber (antesala), hypertension (hipertensión).