- cactoid
- cofinal
- coinitial
- cofibration
- cohomology
- compactification
- compactum
- condimension
- conet
- cross-cap
- cross-term
- dihomology
- finer
- full-sphere
- hemicompact
- homotopy
- imbedding
- imbedded
- midpoint
- monodromy
- multihomotopy
- non-metrisable
- orianted
- orientability
- paiting
- paracompact
- pseudomanifold
- shef
- space
- substatum
- subcomplex
- subgraph
- supercomplex
- toriod
- triangulated
- unknotted