Homonimos são palavras que soam ou parecem similar a outra mas tem significados diferentes. Pode ser fácil, quando escrito, definir a errada. Ainda que ambas são palavras válidas, um corretor ortográfico não vai entender o erro (muito facilmente); O escrito ele mesmo (ela mesma) precisa ser capaz de diferenciar as palavras similares. Existem algumas palavras mais frequentemente confundidas.
Itching powder, when used as an offensive weapon, affects your enemy's ability to fight back.
Effect means to cause something to come to pass:
The victory was effected by throwing itching powder over the enemy.
The winds of autumn swiftly bared the trees, and the trees were most embarrassed.
Bear means to carry (a physical burden) or to endure (a metaphorical one):
Sam longed for adventure, unable to bear the dullness of her hometown.
An illustration of a forest glade complements a fairytale much better than an illustration of a septic tank.
If two things compliment one another, they tell each other flattering things:
Eric complimented the frogs on their cooking, giving particular praise to the water-lily jellies.
The room had been decorated with artistic flair.
A flare is a burst of light:
Three flares were released as a distress signal.
For fifty years the dragon had slept on its hoard of treasure.
A horde is a large, moving group of people or creatures:
The hordes of the Dark Lord swept all before them.
It's really bad this time!
Its (no apostrophe) is the possessive determiner meaning "that which belongs to it":
The black magician's cat went in fear of its nine lives.
Tom was loath to give money to his shiftless nephew.
To loathe means to detest:
The boy had loathed cabbage since his schooldays.
Albert loosed his dog, but the dog ignored the burglars and attacked a portrait of Albert's mother.
Lose means to mislay something or to have something pass permanently away:
People lose much valuable time by daydreaming when they should be working.
I pored over the book until I knew it backwards, sideways and upside-down.
To pour is to transfer liquid from a container:
Captain Hardbrace poured lemonade and the crew toasted the success of the expedition.
E.g. The reign of Edward the Third lasted fifty years.
Rein, as a verb (usually followed by in) means to pull back, bring under control ("rein in one's temper"). The noun rein (usually plural) means the strap(s) used to control a horse.
On clear evenings the stars were a magnificent sight.
A site is a location, generally one where something is happening or is being built:
Spectators gathered at the site of the alien landing.
The hot new Internet site crashed in the first five minutes.
A tale is a narrative story:
The companions told tales of horror around the fire.
Too indicates an excessive quantity or quality:
The room was too dark because there were too few windows.
Or has the same meaning as also:
Mary had come along, too.