I usually have a lunch break/brake at 12pm.
Break
The knight challenged the man to a duel/dual.
Duel
Nauru is an aisle/isle near Oceania.
Isle
I don't know whether/weather to go to the concert or stay home.
Whether
The doorknob is loose/lose you need to tighten it.
Loose
My brother always loose/loses when we play games together.
Loses
Simone Biles won 3 gold metals/medals at the 2024 Olympics.
Medals
In Florida, the whether/weather is either sunny or rainy.
Weather
Maria has dual/duel citizenship in Costa Rica and The U.S.
Dual
Flan is my favorite dessert/desert.
Dessert
Metallica is my favorite medal/metal band
Metal