Fool around and Take it easy

Fool around verb - To engage in attention-getting playful or boisterous behavior.

Take it easy and fool around are semantically related In some cases you can use "Take it easy" instead a verb "Fool around".

Take it easy verb - Settle into a comfortable sitting position.

Fool around and take it easy are semantically related in idle topic. Sometimes you can use "Fool around" instead a verb phrase "Take it easy", if it concerns topics such as lazy, avoid work.