Word part · Latin prefix
The Latin prefix bi-
Means: two, or every two.
At a glance
- Part
- bi-
- Meaning
- two, or every two
- Layer
- Latin: Prefixes, suffixes and roots behind many school and book words.
With time words it means every two: biweekly is every two weeks. Do not mix it up with Greek bio, which means life.
Example words
Read each word, then its sum: the parts that build it, and what they mean together.
Colors:prefixroot or basesuffix
- bi (prefix)+cycle (root or base)→bicycle
a cycle with two wheels
- bi (prefix)+cycle (root or base)+s (suffix)→bicycles
more than one bicycle
- bi (prefix)+plane (root or base)→biplane
an airplane with two sets of wings, one above the other
- bi (prefix)+week (root or base)+ly (suffix)→biweekly
every two weeks
- bi (prefix)+month (root or base)+ly (suffix)→bimonthly
every two months
- bi (prefix)+focal (root or base)+s (suffix)→bifocals
glasses with two kinds of lenses in each frame
Original word lists and meanings written by Literacy Trail.
Taught alongside
Parts that share a lesson with bi-.
Teach word parts with ready lessons
Literacy Trail has word parts lessons with words to read, build, split and spell, and full-screen players for the student. Every plan starts with a 15-day free trial.