knife

v. cut or stab with a knife; cut through as with a knife, move through as with a knife

n. tool with a thin sharp blade that is used for cutting

A knife is a sharp-edged (single or double edged) instrument consisting of a thin blade used for cutting and fitted with a handle. The knife can be used as a tool or a weapon. Considered by some to be one of the most useful tools of all time, its origins date as far back as two-and-a-half million years ago, as evidenced by the Olduwan tools.
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Noun
1. edge tool used as a cutting instrument; has a pointed blade with a sharp edge and a handle
(hypernym) edge tool
(hyponym) barong
(part-meronym) blade
(derivation) stab
2. a weapon with a handle and blade with a sharp point
(hypernym) weapon, arm, weapon system
(hyponym) bayonet
(part-meronym) point, tip, peak
(derivation) stab
3. any long thin projection that is transient; "tongues of flame licked at the walls"; "rifles exploded quick knives of fire into the dark"
(synonym) tongue
(hypernym) projection
Verb
1. use a knife on; "The victim was knifed to death"
(synonym) stab
(hypernym) injure, wound
(hyponym) poniard

(v. t.)
To prune with the knife.
  

(v. t.)
To cut or stab with a knife.
  

(n.)
An instrument consisting of a thin blade, usually of steel and having a sharp edge for cutting, fastened to a handle, but of many different forms and names for different uses; as, table knife, drawing knife, putty knife, pallet knife, pocketknife, penknife, chopping knife, etc..
  

(n.)
A sword or dagger.
  

Common Name
African Brown Knife
Other Common Names
African Knife
Scientific Name
Xenomystus nigri
Family
Notopteridae
Community
General
Class
Knife
Temperature
78 ºF
Swimming Range
Middle
Adult Length
4-4 1/2 inches
Feeding Habits
Small live foods such as fish, blood worms, glass worms, tubifex worms and brine shrimp. Frozen plankton, beef heart, glass worms, blood worms and brine shrimp.
Compatibility
Peaceful with other fish, but will fight amongst themselves.
Habitat
Africa: Moderately decorate with live plants, rocks and driftwood.
Breeding
Unknown.
Additional Comments
The elongated fin across the bottom portion of the body allows for forward and reverse movements.

Common Name
Black Ghost Knife
Other Common Names
Ghost Knife, Black Knife
Scientific Name
Sternarchus alhifrons
Family
Apteronotidae
Community
Semi-Aggressive
Class
Knife
Temperature
78 ºF
Swimming Range
Middle-Bottom
Adult Length
19 inches
Feeding Habits
Live fish, chopped earthworms, blood worms, brine shrimp, glass worms and tubifex worms. Frozen brine shrimp, beef heart, plankton, glass worms and blood worms.
Compatibility
Peaceful with other fish, but aggressive with other knives.
Habitat
Brazil: Densely decorate with live plants, rocks and driftwood.
Breeding
Unknown
Additional Comments
Black Ghosts are extremely sensitive to poor water quality.