sweet is an English word meaning "candy" in Portuguese. Depending on the context and how it is used, it can be an adjective or a noun.
When used to describe the taste of some food or drink, the word sweet means that the food or drink is sweet (or salt free), either because of sugar or another type of sweetening agent. the noun sweets is used to describe sweets such as pies, cakes, treats, and other high-sugar foods. An odor can also be considered sweet: A sweet aroma was coming out of the kitchen - A sweet aroma was coming from the kitchen.
In the English language, the word sweet it can also be used to describe a person. In that case, sweet refers to a kind, charming, friendly and dear person. A good example of the use of the word sweet in this context is the song Sweet Child O' Mine (My Sweet Child), authored by Armas e Rosas. Also in the musical sphere, a harmonious song can also be labeled as sweet.
sweet it can also be a compliment to some object of quality considered captivating: Is that your new car? Sweet! - Is that your new car? Cool!