The difference between Compact and Solid
When used as nouns, compact means an agreement or contract, whereas solid means a substance in the fundamental state of matter that retains its size and shape without need of a container (as opposed to a liquid or gas).
When used as adjectives, compact means closely packed, i.e. packing much in a small space, whereas solid means that can be picked up or held, having a texture, and usually firm. unlike a liquid or a gas.
Compact is also verb with the meaning: to make more dense.
Solid is also adverb with the meaning: solidly.
check bellow for the other definitions of Compact and Solid
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Compact as a noun:
An agreement or contract.
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Compact as an adjective:
Closely packed, i.e. packing much in a small space.
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Compact as an adjective:
Having all necessary features fitting neatly into a small space.
Examples:
"a compact laptop computer"
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Compact as an adjective (mathematics, uncomparable, of a set in an Euclidean space):
Closed and bounded.
Examples:
"A set S of real numbers is called compact if every sequence in S has a subsequence that converges to an element again contained in S."
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Compact as an adjective (topology, uncomparable, of a set):
Such that every open cover of the given set has a finite subcover.
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Compact as an adjective:
Brief; close; pithy; not diffuse; not verbose.
Examples:
"a compact discourse"
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Compact as an adjective (obsolete):
Joined or held together; leagued; confederated.
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Compact as an adjective (obsolete):
Composed or made; with of.
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Compact as a noun:
A small, slim folding case, often featuring a mirror, powder and a powderpuff; that fits into a woman's purse or handbag, or that slips into one's pocket.
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Compact as a noun:
A broadsheet newspaper published in the size of a tabloid but keeping its non-sensational style.
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Compact as a verb (transitive):
To make more dense; to compress.
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Compact as a verb:
To unite or connect firmly, as in a system.
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Solid as an adjective (of an object or substance):
That can be picked up or held, having a texture, and usually firm. Unlike a liquid or a gas.
Examples:
"Almost all metals are solid at room temperature."
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Solid as an adjective:
Large in size, quantity, or value.
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Solid as an adjective:
Lacking holes, hollows or admixtures of other materials.
Examples:
"solid [[gold]]'', ''solid [[chocolate]]"
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Solid as an adjective:
Strong or unyielding.
Examples:
"a solid foundation"
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Solid as an adjective (slang):
Excellent, of high quality, or reliable.
Examples:
"That's a solid plan."
"Radiohead's on tour! Have you heard their latest album yet? It's quite solid."
"I don't think Dave would have done that. He's a solid dude."
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Solid as an adjective:
Hearty; filling.
Examples:
"a solid meal"
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Solid as an adjective:
Worthy of credit, trust, or esteem; substantial; not frivolous or fallacious.
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Solid as an adjective:
Sound; not weak.
Examples:
"a solid constitution of body"
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Solid as an adjective (typography):
Written as one word, without spaces or hyphens.
Examples:
"American English writes many words as solid that British English hyphenates."
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Solid as an adjective (printing, dated):
Not having the lines separated by leads; not open.
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Solid as an adjective (US, politics, slang):
United; without division; unanimous.
Examples:
"The delegation is solid for a candidate."
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Solid as an adjective:
Of a single color throughout.
Examples:
"John painted the walls solid white."
"He wore a solid shirt with floral pants."
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Solid as an adjective (of drawn lines):
Continuous; unbroken; not dotted or dashed.
Examples:
"The solid lines show roads, and the dotted lines footpaths."
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Solid as an adjective (dated):
Having all the geometrical dimensions; cubic.
Examples:
"A solid foot contains 1,728 solid inches."
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Solid as a noun (chemistry):
A substance in the fundamental state of matter that retains its size and shape without need of a container (as opposed to a liquid or gas).
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Solid as a noun (geometry):
A three-dimensional figure (as opposed to a surface, an area, or a curve).
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Solid as a noun (informal):
A favor.
Examples:
"Please do me a solid: lend me your car for one week."
"I owe him; he did me a solid last year."
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Solid as a noun:
An article of clothing which is of a single color throughout.
Examples:
"I prefer solids over paisleys."
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Solid as a noun (in the plural):
Food which is not liquid-based.
Examples:
"The doctor said I can't eat any solids four hours before the operation."
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Solid as an adverb:
Solidly.
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Solid as an adverb (not comparable, typography):
Without spaces or hyphens.
Examples:
"Many long-established compounds are set solid."