- flabby resolution
- flabby sheaf
- flag
- flag-affine
- flag bit
- flag bundle
- flag complex
- flag curvature
- flag manifold
- flag set
- flag space
- flag structure
- flag superspace
- flag-transitive
- flag variety
- flank
- flanking
- flat
- flat analytic mapping
- flat angle
- flat bundle
- flat chain
- flat cochain
- flat connection
- flat covering