knife
Intermediate (B1)
IPA: /naɪf/
KK: /naɪf/
intransitive verb
Definition
To move quickly and smoothly through something, like a boat cutting through water.
Example
The speedboat knifed through the waves, leaving a trail of foam behind.
Tense Forms
Past: knifed
Past Participle: knifed
Conversation
Did you see how the boat knifed through the waves yesterday?
Yeah, it was amazing to watch!
I wish I could experience that kind of speed on the water.
You definitely should try it; it's such a thrill!
Synonyms & Antonyms
Synonyms
slice
carve
cleave
Antonyms
join
attach
connect
noun
Definition
A tool used for cutting, which has a sharp blade attached to a handle.
Example
She used a knife to slice the vegetables for the salad.
Conversation
Can you pass me that knife over there?
Sure! What are you cutting?
I'm just slicing some vegetables for dinner.
transitive verb
Definition
To stab or wound someone with a sharp tool, typically used for cutting.
Example
He was knifed during the altercation.
Tense Forms
Past: knifed
Past Participle: knifed
Conversation
Did you hear about the argument at the party last night?
Yeah, I heard someone tried to knife another person during a fight.
That's crazy! I can't believe things got so out of hand.
Root Explanation
Knife → The word 'knife' originates from Old English 'cnif', meaning a cutting instrument. It refers specifically to a tool used for cutting or slicing.
Memory Tip
Think of the Old English word 'cnif' which means a cutting tool — this helps you remember that a knife is used for cutting.
Visually Confused Words
nife
nifle