relax

verb

1. become less tense, rest, or take one's ease"He relaxed in the hot tub"
2. make less taut"relax the tension on the rope"
3. become loose or looser or less tight"The noose loosened"
4. cause to feel relaxed"A hot bath always relaxes me"
5. become less tense, less formal, or less restrained, and assume a friendlier manner"our new colleague relaxed when he saw that we were a friendly group"
6. make less severe or strict"The government relaxed the curfew after most of the rebels were caught"
7. become less severe or strict"The rules relaxed after the new director arrived"
8. make less active or fast"He slackened his pace as he got tired"