The act of arranging or assigning things into classes or groups; categorizing.
Present participle of 'class' used as a verb. Related to 'classification' but used more directly for the action of putting something into a class.
Horse breeders spend their lives 'classing' horses—one tiny difference in shoulder angle or leg length can move a horse from a $500 animal to a $500,000 champion.
Complete word intelligence in one call. Free tier — 50 lookups/day.