simple past tense and past participle of topple

plural of toppling

Third-person singular simple present indicative form of topple

(transitive) To push, throw over, overturn or overthrow something. / (intransitive) To totter and fall, or to lean as if about to do so.

present participle of topple

The act by which something is toppled.

(idiomatic) To fall over (to fall from an upright or standing position to a horizontal or prone position).