Fall headlong and Knock down

Knock down and fall headlong are semantically related in fall or make fall awkwardly topic. In some cases you can use "Knock down" instead a verb phrase "Fall headlong".

Knock down verb - To receive as return for effort.

Fall headlong and knock down are semantically related in fall or make fall awkwardly topic. Sometimes you can use "Fall headlong" instead a verb "Knock down".