Hard vs Solid

When to use each in English, with meaning, register, and examples.

Hard

Top 1,000 (very common)A1adjective

Solid

Top 1,000 (very common)B1adjective
 HardSolid
Pronunciation🇬🇧 /["/hɑːd/"]/🇺🇸 /["/hɑːrd/"]/🇬🇧 /["/ˈsɒlɪd/"]/🇺🇸 /["/ˈsɑːlɪd/"]/
MeaningNot easy; needing a lot of effort.Firm and strong, not liquid or gas.
ExampleThe exam was very hard, and I struggled to answer all the questions.The chair is made of solid wood, ensuring durability and strength.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 1,000 (very common)
CEFR levelA1B1
Part of speechadjectiveadjective
Collocationsbe, look, seem, extremely, fairly, very, be, look, seem, extremely, fairly, very, be, feel, look, extremely, fairly, very, rock hardbe, feel, look, extremely, fairly, very, be, feel, look, extremely, fairly, very, be, feel, look, extremely, fairly, very, appear, be, look, extremely, fairly, very
Antonymseasy, soft, gentleliquid, hollow, weak
Common mistakes'Hard' often confused with 'hardly', which means 'barely'., Using 'hard' where 'hardy' (meaning strong) is intended., Misplacing 'hard' in phrasal verbs, e.g., saying 'hard to give up' instead of 'hard to let go'.Confusing 'solid' with 'soluble' when talking about materials., Using 'solid' in a context that requires 'liquid' or 'gas'.
Usage notesUsed to describe tasks or situations that require great effort or are difficult to understand. It can be used in both formal and informal settings, but may sound more informal in phrases like 'hard as nails'.Use 'solid' to describe objects that are hard or strong. It's neutral enough for most contexts but may be informal when describing concepts like arguments or friendships.

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Hard
Solid

Frequently asked questions: Hard vs Solid

What's the difference between Hard and Solid?

Hard: Not easy; needing a lot of effort. Solid: Firm and strong, not liquid or gas.

Which is more advanced: Hard and Solid?

Solid is the highest level, at B1, on the CEFR scale.

Are Hard and Solid the same CEFR level?

Hard: A1, Solid: B1 on the CEFR scale.

What part of speech are Hard and Solid?

Hard: adjective, Solid: adjective.

Can you show an example of each?

Hard: The exam was very hard, and I struggled to answer all the questions. Solid: The chair is made of solid wood, ensuring durability and strength.

Can I use Hard and Solid interchangeably?

Not always. Hard and Solid are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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