Matter
Part of speech: verb
Definition: To be important. To care about, to mind; to find important.
Part of speech: noun
Definition: The basic structural component of the universe. Matter usually has mass and volume. Matter made up of normal particles, not antiparticles. (Non-antimatter matter). A kind of substance. A reason for concern; being amiss. A situation. A cause. Written material (especially in books or magazines) Gray and white matter are the two nerve tissue types that comprise the brain and spinal cord.
Example sentence: Make space in your life for the things that matter, for family and friends, love and generosity, fun and joy. Without this, you will burn out in mid-career and wonder where your life went.
Affair
Part of speech: noun
Definition: That which is done or is to be done; matter; concern; business of any kind, commercial, professional, or public; — often in the plural.Any proceeding or action which it is wished to refer to or characterize vaguely.An action or engagement not of sufficient magnitude to be called a battle.A material object (vaguely designated).An adulterous relationship. (from affaire de coeur.)
Example sentence: Hatred is an affair of the heart; contempt that of the head.