https://www.merriam-webster.com/dictionary/hard
The meaning of HARD is not easily penetrated : not easily yielding to pressure. How to use hard in a sentence. Synonym Discussion of Hard.
https://dictionary.cambridge.org/dictionary/english/hard
HARD definition: 1. not easy to bend, cut, or break: 2. difficult to understand, do, experience, or deal with: 3…. Learn more.
https://www.thefreedictionary.com/HARD
Resistant to pressure; not readily penetrated; firm or solid: a hard material. b. Well protected from an attack, as by aerial bombardment: bunkers and other hard targets. 2. a. Req
https://www.oxfordlearnersdictionaries.com/us/definition/english/hard_1
Definition of hard adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
https://www.collinsdictionary.com/us/dictionary/english/hard
Something that is hard is very firm and stiff to touch and is not easily bent, cut, or broken. He shuffled his feet on the hard wooden floor.
https://www.wordreference.com/definition/hard
difficult or troublesome with respect to an action, situation, person, etc.: hard to please; a hard time. difficult to deal with, manage, control, overcome, or understand: a hard p
https://www.oed.com/dictionary/hard_adj
There are 83 meanings listed in OED's entry for the word hard, two of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.
https://www.thesaurus.com/browse/hard-working
Find 157 different ways to say HARD-WORKING, along with antonyms, related words, and example sentences at Thesaurus.com.
https://en.wiktionary.org/wiki/hard
2 days ago · hard (comparative harder or more hard, superlative hardest or most hard) (of material or fluid) Solid and firm. quotations
https://www.yourdictionary.com/hard
Hard definition: Proceeding or performing with force, vigor, or persistence; assiduous.