A material object (vaguely designated).
An action or engagement not of sufficient magnitude to be called a battle.
An adulterous relationship (from affaire de cœur, affair of the heart).
A person with whom someone has an adulterous relationship.
A romantic relationship with someone who is not one's regular partner (boyfriend, girlfriend).
Something which is done or is to be done; business of any kind, commercial, professional, or public.
A party or social gathering, especially of a formal nature.
Any proceeding or action which it is wished to refer to or characterize vaguely.
A kind of substance.
Matter made up of normal particles, not antiparticles.
Aristotelian: undeveloped potentiality subject to change and development; formlessness. Matter receives form, and becomes substance.
An affair, condition, or subject, especially one of concern or (especially when preceded by the) one that is problematic.
The basic structural component of the universe, usually having mass and volume.
An approximate amount or extent.
Printed material, especially in books or magazines.
To be important.
To care about, to mind; to find important.