- sub diffusion process
- sub-diffusion process
- sub-diffusive process
- subdirect
- subdirect decomposition
- subdirect irreducibility
- subdirectly irreducible
- subdirectly irreducible algebra
- subdirectly irreducible group
- subdirectly irreducible ring
- subdirectly reducible algebra
- subdirect product
- subdirect representation
- subdirect sum
- subdirect union
- subdistribution
- sub-district and neighborhood committee system
- subdistrict office
- subdivide
- subdivision
- subdivisional works
- subdivision by analogy
- subdivision chain
- subdivision chain mapping
- subdivision for curves and surfaces