1. Things that do not change or vary; constants or fixed elements.
Usage: Usually plural; used in mathematics, science, and formal contexts to refer to quantities or properties that remain the same.
2. In linguistics, words or forms that do not change according to grammatical rules (such as prepositions or conjunctions).
Usage: Technical term used in grammar and linguistics.

Examples

• In the equation, we identified the invariables and the variables to solve the problem.
• Mathematical invariables remain constant regardless of the transformation applied.
• The speed of light is one of the fundamental invariables in physics.
• Prepositions are invariables in English grammar; they do not change form.
• The study focused on the invariables that affect climate patterns across regions.