saviour and savour - Confusing homophones
Saviour - a person who rescues or saves somebody
God is our saviour
Savour - characteristic taste
The food had a Chinese savour
sever and severe
Sever - separate, divide
Severe - strict, hard to do, rigorous
regenerate and rejuvenate
regenerate - to reform spiritually, to give a new life
rejuvenate - to make, or become young or vigorous again, to renew
repeal and repel
repeal - cancel, revoke
repel - drive back, refuse
She will certainly repel his advances.