Hard
Part of speech: noun
Definition: A firm or paved beach or slope convenient for hauling vessels out of the water
Part of speech: adverb
Definition: With much force or effort. With difficulty. Compactly.
Part of speech: adjective
Definition: Resistant to pressure. Requiring a lot of effort to do or understand Demanding a lot of effort to endure. , severe, harsh, unfriendly, brutal. Unquestionable. Of drink, strong. Having a comparatively larger or a ninety-degree angle. Of water, high in dissolved calcium compounds. Sexually aroused. Having muscles that are tightened as a result of intense, regular exercise. Of a ferromagnetic material, having the capability of being a permanent magnet by being a material with high magnetic coercivity (c.f. soft)
Example sentence: There is no substitute for hard work.
Tough
Part of speech: noun
Definition: A person who obtains things by force; a thug or bully.
Part of speech: adjective
Definition: strong and resilient; sturdydifficult to cut or chewrugged or physically hardyStubborn.harsh or severerowdy or rough.difficult or demandingUndergoing plastic deformation before breaking.
Part of speech: interjection
Definition: Used to indicate lack of sympathy
Part of speech: verb
Definition: To endure.To toughen.
Example sentence: Life is full of tough decisions, and nothing makes them easy. But the worst ones are really your personal koans, and tormenting ambivalence is just the sense of satori rising. Try, trust, try, and trust again, and eventually you'll feel your mind change its focus to a new level of understanding.