Difference between Harden and Toughen

HARDEN vs TOUGHEN: NOUN

To accustom by labor or suffering to endure with constancy; to strengthen; to stiffen; to inure; also, to confirm in wickedness or shame; to make unimpressionable.
To make hard or harder; to make firm or compact; to indurate.

To make hard or more hard in substance or texture; make firm or compact; indurate: as, to harden steel, clay, or tallow; to harden the hands or muscles by toil.
To dry (clothes) by airing.
To make hard or harder in feeling; strengthen or confirm with respect to any element of character; inure; toughen; especially, to make indifferent, unfeeling, obstinate, wicked, etc.
Synonyms To accustom, discipline, train, toughen, habituate, steel, brace, nerve.
To become hard or more hard; acquire solidity or compactness: as, mortar hardens in drying.
Habituate
Make healthy
To become inured or toughened; especially, to become unfeeling.
To rise in price; grow dear: as, the market hardens.
Of hards or inferior flax.

To make tough or tougher.
To grow tough or tougher.
Specifically, of copper, in its metallurgy, the elimination of the foreign metals as oxids and of copper oxid itself, changing the qualities of the cast from brittleness to ductility.
(transitive; intransitive verb) To make or become tough. : harden.

Hickey, Cake, Enure, Set, Steel, Gel, Tighten, Reinforce, Toughen, Solidify, Strengthen, Fortify, Season, Inure, Temper

Loosen, Inure, Anneal, Enure, Emphasize, Exacerbate, Temper, Enhance, Reinforce, Intensify, Harden, Sharpen, Strengthen, Stiffen, Tighten

Melt, Weaken, Thicken, Stiffen, Soften, Cake, Set, Steel, Gel, Tighten, Reinforce, Strengthen, Fortify, Season, Temper

Tweak, Soften, Loosen, Anneal, Emphasize, Exacerbate, Temper, Enhance, Reinforce, Intensify, Harden, Sharpen, Strengthen, Stiffen, Tighten

It does more than just harden soft nails.
Estabrooks PA, Harden SM, Almeida FA, et al.
Follow the links below to harden your system.
Large blobs of magma harden in the air.
The proprietor of Park Harden, on Neamllh atreet.
Dr. Leanne Rorish (Marcia Gay Harden) takes over the call, which is particularly entertaining because the girl is played by Harden's daughter Julitta Scheel.
Ways To Harden Fondant You can give fondant that little push it needs to harden quicker naturally, with airflow or mild heat.
TNT Rockets rally past Spurs to begin life without James Harden Angry Rockets fans can trade James Harden jerseys for free car.
Neylee Marie Harden; and nephews, Levi Chilton Harden, Austin Russell Hall and Hunter Ray Hall.
Harden and the franchise has become untenable, and Harden is not shying away from talking about it.

This polyblending technique is used to toughen a number of plastics.
Symptoms of ALPRAZOLAM may toughen: lizard craftsman problems with being careful.
A Virginia Delegate wants to toughen state law against dangerous toys.
For example, small amounts of calcium tend to toughen vegetables.
Now the nation is set to further toughen this approach.
Bill of Rights initiative to toughen criminal sentencing guidelines.
"The golf course will toughen up, obviously," said Westwood.
Toughen up, crashing noisily into a cask holding ironmongery.
Doing so wjll toughen return visitors to your location.
Using a moist heat method will toughen it.