Spelling.School · How to spell
How to spell knapsack
Knapsack is spelled K-N-A-P-S-A-C-K.
What it means: A bag carried on your back.
In a sentence: Max packed his lunch in a small blue knapsack.
The part people get wrong
Watch for a silent k.
Same family: backpack, rucksack, bag, handbag, luggage. If you can spell one, the shared part carries to the others.
Where it comes from: “Knapsack” comes from German "Knappsack," where "knappen" meant “to eat a snack” and "Sack" meant “sack or bag,” referring to a soldier’s bag for food and supplies.
Try spelling it
You will hear the word and a sentence. Type it and press Enter. Then four more words from the same level, so you know where you stand.
Words like this
knock · knob · knickers · wreck · knoll · knead · knave · knot
Everyone has words they always get wrong. Spelling.School finds yours, shows you exactly why you miss them, and uses spaced repetition until you spell them right every time. Five minutes a day. Try five words without signing up.