- Columbia Union College
- Columbia Union College
- Columbia University-Columbia College
- Columbia University School of General Studies
- columbine
- columbines
- columbite
- columbites
- columbium
- columbiums
- Columbus
- Columbus College
- Columbus College
- Columbus College of Art and Design
- Columbus Day
- Columbus State Community College
- columella
- columellae
- column
- column
- columnar
- columnar epithelium
- column dress
- columnea
- columneas