There are no absolute rules for when to use a hyphen or when to write a prefixed word as one whole word (see the examples in the table). A good learner’s dictionary will tell you how to …

Prefixes are an essential part of English vocabulary. They are added to the beginning of a word to change its meaning. Learning prefixes will help you expand your vocabulary, understand word …

Prefix definition: an affix placed before a word, base, or another prefix to modify a term's meaning, as by making the term negative, as un- in unkind, by signaling repetition, as re- in reinvent, or …

Oct 29, 2025 · Prefixes are fascinating tools in our language that allow us to alter the meaning of words with just a few letters. When we add these meaningful bits to the beginning of a word, …

Jun 12, 2025 · A prefix is a letter or group of letters that are added to the beginning of a word to change its meaning. For example, “bi-” means “two.”

Dec 8, 2022 · Prefixes are one- to three-syllable affixes added to the beginning of a base word to slightly change its meaning. For example, adding the prefix im- to the base word possible …

Jul 8, 2025 · A prefix is a letter or group of letters at the beginning of a root word (e.g., the “micro-” prefix in “micronutrient”). There are over 30 prefixes in the English language.

What are prefixes? Discover how adding a prefix can change the meaning of a word through an animation and activity in this Bitesize KS1 Explainer.

Lots of words have a prefix, and it's sometimes easier to figure out the meaning of those words if you know the meaning of the prefix. For example, the super- means "above" or "over"; hypo- …

Nov 27, 2016 · Prefixes and suffixes are super useful for customizing the meanings of words, but what are they? What is a prefix? A prefix is a group of letters (or an affix) that’s added to the …