To engage in an activity other than what one is known for.
To work on the side (at a secondary job), often in the evening or during the night.
To perform a secondary function substantially different from its supposed primary function, as in protein moonlighting.
The light reflected from the Moon.
To become loose.
To become less severe or tense.
To make something (such as codes and regulations) more lenient.
To calm down.
To relieve (something) from stress.
To make something less severe or tense.
To make something loose.
To become more lenient.