stretching

act of expanding by lengthening or widening
exercise designed to extend the limbs and muscles to their full extent
occupy a large, elongated area;
extend one's limbs or muscles, or the entire body;
extend or stretch out to a greater or the full length;
become longer by being stretched and pulled;
make long or longer by pulling and stretching;
lie down comfortably;
pull in opposite directions;
extend the scope or meaning of; often unduly;
corrupt, debase, or make impure by adding a foreign or inferior substance; often by replacing valuable ingredients with inferior ones;
increase in quantity or bulk by adding a cheaper substance;
extend one's body or limbs;

stretching is a valid Scrabble (US) TWL word

stretching is a valid Scrabble Word in Merriam-Webster MW Dictionary

stretching is a valid Scrabble Word in International Collins CSW Dictionary

stretching is a valid Words With Friends word