The difference between Arm and Armchair
When used as nouns, arm means the portion of the upper human appendage, from the shoulder to the wrist and sometimes including the hand, whereas armchair means a chair with supports for the arms or elbows.
When used as adjectives, arm means poor, whereas armchair means remote from actual involvement, including a person retired from previously active involvement.
Arm is also verb with the meaning: to take by the arm.
check bellow for the other definitions of Arm and Armchair
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Arm as a noun:
The portion of the upper human appendage, from the shoulder to the wrist and sometimes including the hand.
Examples:
"She stood with her right arm extended and her [[palm]] forward to indicate “Stop!”"
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Arm as a noun (anatomy):
The extended portion of the upper limb, from the shoulder to the elbow.
Examples:
"The arm and forearm are parts of the upper limb in the human body."
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Arm as a noun:
A limb, or locomotive or prehensile organ, of an invertebrate animal.
Examples:
"the arms of an octopus"
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Arm as a noun:
A long, narrow, more or less rigid part of an object extending from the main part or centre of the object, such as the arm of an armchair, a crane, a pair of spectacles or a pair of compasses.
Examples:
"The robot arm reached out and placed the part on the assembly line."
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Arm as a noun (geography):
A bay or inlet off a main body of water.
Examples:
"Shelburne Bay is an arm of Lake Champlain."
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Arm as a noun:
A branch of an organization.
Examples:
"the cavalry arm of the military service"
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Arm as a noun (figurative):
Power; might; strength; support.
Examples:
"the arm of the law"
"the secular arm'"
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Arm as a noun (baseball, slang):
A pitcher
Examples:
"The team needs to sign another arm in the offseason."
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Arm as a noun (genetics):
One of the two parts of a chromosome.
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Arm as a noun:
A group of patients in a medical trial.
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Arm as a verb:
To take by the arm; to take up in one's arms.
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Arm as a verb:
To supply with arms or limbs.
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Arm as an adjective (UK, _, dialectal, chiefly, Scotland):
Poor; lacking in riches or wealth.
Examples:
"He's neither poor nor arm."
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Arm as an adjective (UK, _, dialectal, chiefly, Scotland):
To be pitied; pitiful; wretched.
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Arm as a noun (usually used in the plural):
A weapon.
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Arm as a noun (in the plural):
heraldic bearings or insignia
Examples:
"The Duke's arms were a sable gryphon rampant on an argent field."
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Arm as a verb:
To supply with armour or (later especially) weapons.
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Arm as a verb:
To prepare a tool or a weapon for action; to activate.
Examples:
"Remember to arm an alarm system."
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Arm as a verb:
To cover or furnish with a plate, or with whatever will add strength, force, security, or efficiency.
Examples:
"to arm the hit of a sword; to arm a hook in angling"
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Arm as a verb (figurative):
To furnish with means of defence; to prepare for resistance; to fortify, in a moral sense.
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Arm as a verb:
To fit (a magnet) with an armature.
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Armchair as a noun:
A chair with supports for the arms or elbows.
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Armchair as an adjective (figuratively):
Remote from actual involvement, including a person retired from previously active involvement.
Examples:
"These days I'm an armchair detective."
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Armchair as an adjective (figuratively):
Unqualified or uninformed but yet giving advice, especially on technical issues, such as law, architecture, medicine, military theory, or sports.
Examples:
"He's just an armchair lawyer who thinks he knows a lot about the law because he reads a legal [[blog]] on the internet."
"After the American football game, the armchair [[quarterback]]s talked about what they would have done differently to win, if they had been star athletes instead of out-of-shape old men."