This is the 1491st most frequent Russian word.
ножом
The Russian word "ножом" means "with a knife" or "by knife" (instrumental case of "нож").
The word 'ножом' is the instrumental case of 'нож', meaning 'with a knife', showing the tool used to perform an action.
Он разрезал яблоко ножом.
He cut an apple with a knife.
'Ножом' here shows the means by which the action (peeling) was completed.
Картошка была очищена ножом.
The potato was peeled with a knife.
In this sentence, 'ножом' indicates the instrument responsible for causing the damage or alterations.