A nut is a fruit composed of an inedible hard shell and a seed, which is generally edible. In general usage, a wide variety of dried seeds are called nuts, but in a botanical context “nut” implies that the shell does not open to release the seed. The translation of “nut” in certain languages frequently requires paraphrases, as the word is ambiguous.
Some fruits and seeds that do not meet the botanical definition but are nuts in the culinary sense are:
Almonds are the edible seeds of drupe fruits — the leathery “flesh” is removed at harvest.
Brazil nut is the seed from a capsule.
Cashew is the seed
Macadamia is a creamy white kernel of a follicle type fruit.
Peanut is a seed and from a legume type fruit
Pecan is the seed of a drupe fruit
Pili nut is the seed of the tropical tree Canarium ovatum
Pine nut is the seed of several species of pine