| force | reinforce, strengthen, augment |
| forted | fortified, reinforced, strengthened |
| needful | full of need, needing reinforcements |
| new-added | reinforced, supplemented, augmented |
| promise | add to, reinforce, augment |
| reinforce | obtain reinforcements |
| reinforcement | fresh attack, renewal of force |
| second | support, assist, reinforce |
| second | (plural) reinforcements, reserves, back-up |
| succour | reinforcements, military assistance |
| supply | reinforcement(s), support, relief |
| supply | reinforce, support, strengthen |
| supportance | support, propping up, reinforcement |