Confusing Words from Groan to Guitar

Do you groan or grown when you are in pain? Is the person who owns a grocery store a grocer or a grosser? Is someone who comes to visit you a guest or a guessed? Would you play a guitar or a catarrh?

groan, grown
A groan is a low, mournful sound uttered in pain or grief.
Groans of pain from beneath the rubble alerted rescuers that someone was still trapped.
When someone is grown, one has arrived at full growth or maturity.
In some places, the rituals you need to go through to be considered grown are quite painful.

grocer, grosser
A grocer is the owner or operator of a store that sells general food supplies and certain nonedible articles of household use, as soaps and paper products.
Our local grocer is having a new store built.
Grosser has a couple of meanings that really surprised me. A grosser is a product or production yielding a large volume of business. A grosser is also an operator of a machine that whirls candy in a pan (as of syrup or wax coloring matter) to give it a finishing coat or polish—also called “glazer” or “panman.”
The film company is hoping that their new movie will be a top box-office grosser.
His new job as a grosser was not nearly as challenging as he wanted.

guessed, guest
If you have guessed, then you have formed a judgment or opinion of something without knowledge or from insufficient, uncertain, or ambiguous evidence or on grounds of probability alone.
Instead of studying for the test, she guessed at all the answers.
A guest is a visitor.
The guest stayed so long and acted so horribly that he became unwelcome.

guide, guyed
A guide is a person who guides, especially one hired to guide travelers, tourists, hunters, etc. To guide is to lead or show the way.
While in Paris, they hired a guide to show them around.
This one is a new word for me. If you have guyed an item, you have secured it with rope or wire. Guyed also means to have ridiculed in good humor.
Matthew’s friends guyed him over his new job.

guise, guys
Guise is the external appearance or the assumed appearance. It is also the style of dress.
Her peasant guise didn’t fool those who were peasants.
Guys are men. Guys are also ropes, cables, or appliances used to guide and steady an object being hoisted or lowered or secured.
Guys were hooked to the freezer before it was moved.

guitar, catarrh
A guitar is a stringed musical instrument with a long, fretted neck, a flat, somewhat violinlike body, and typically six strings, which are plucked with the fingers or with a plectrum.
My husband, my son, and my daughter can all play the guitar.
Catarrh is inflammation of a mucous membrane, especially of the respiratory tract, accompanied by excessive secretions.
Medication should be taken if you are suffering from catarrh.

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