Noah Webster's Dictionary 1. (n.) The act of encroaching upon the rights or possessions of another; encroachment; trespass. 2. (n.) A warlike or hostile entrance into the possessions or domains of another; the incursion of an army for conquest or plunder. 3. (n.) The incoming or first attack of anything hurtful or pernicious; as, the invasion of a disease.

Multi-Version Concordance Invasion (1 Occurrence) 1 Samuel 30:14 We made an invasion upon the south of the Cherethites, and upon the coast which belongeth to Judah, and upon the south of Caleb; and we burned Ziklag with fire. (KJV WBS)