sharpen-v; 3 Senses

Sense Number 1: make sharp or sharper; give a point to

Commentary: Syntax is: NP1[agent] SHARPEN NP2[concrete] NP1[concrete] SHARPEN NP2[concrete]

Examples:
I sharpened the pencil.
The knife doesn't cut well and is hard to sharpen.
Sharpen the bottom of the post so it'll go in the ground easier.
Do not try to sharpen scissors with aluminum foil, it'll ruin them.

Mappings:
VerbNet: other_cos-45.4
FrameNet: Cause_to_be_sharp
PropBank: sharpen.01
WordNet 3.0 Sense Numbers: 1, 7

Sense Number 2: make more precise or acute; heighten

Commentary: Syntax is: NP1[agent] SHARPEN NP2[abstract]

Examples:
How do we sharpen the 'innovative edge'?
Sharpen your productivity with Steven Covey's Seven Habits.
Use logic puzzles to sharpen your wits.
Crystal structures sharpen the debate on DNA replication mechanisms.
Some video game have been proven to sharpen your hand-eye coordination.
This drug will sharpen your vision.

Mappings:
VerbNet: other_cos-45.4
FrameNet: NM
PropBank: sharpen.01
WordNet 3.0 Sense Numbers: 2, 3, 8

Sense Number 3: make an image or sound clearer; put into focus

Examples:
You can use the 'Detail' tab to sharpen the branches of the tree.
Sharpen the image by turning the lense 12 degrees to the left.
Covering the holes in the white ends with tape seems to help
sharpen the sound.
It's amazing how HD really sharpens the picture.

Mappings:
VerbNet: NM
FrameNet: NM
PropBank: NM
WordNet 3.0 Sense Numbers: 4, 5, 6