| Term | Definition |
| consist | to be made up of, to be formed |
| consistent | constant, remaining the same |
| insist | to demand, to require |
| insistence | the act of holding firmly to a demand |
| insistent | firm, holding to a demand |
| exist | to be real, to have life |
| existence | life, actuality, being |
| resist | to oppose, to stand firmly against |
| resistance | opposition, the act of standing against |
| resistant | opposing, standing against |
| resistible | capable of being refused, able to be withstood |
| irresistible | not capable of being refused or withstood |
| assist | to aid, to help |
| assistance | help, aid |
| assistant | a person who helps or aids |
| persist | to continue firmly, to endure, to last |
| persistence | perseverance, steadfastness, determination |
| persistent | not giving up, continuing on |
| subsist | to keep alive on, to live on |
| desist | to stop, to cease |