Third-person singular simple present indicative form of topple.(verb)
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Use "topples" in a sentence
"And Skulpin, who had dragged me down, shot with a pistol from where he lay, and Ligoun toppled and fell, as an old pine topples and falls in the teeth of the wind."
"When he topples over the cliff and breaks into tiny bits it looks like the end."
"So suddenly, Arab freedom has taken precedence over Israel and Palestine—or so says the much-maligned Arab Street, as it topples one tyrant and challenges the next."