Respuesta :
If you're referring to the things like adj. or adv., then they tell you what type of word it is. For example, adj. is short for adjective, and adv. is short for adverb. :)
The abbreviation after a word in a dictionary tells you what part of speech the defined word is.
Ex: (vb) is verb ; (n) is noun ; (adj) is adjective.
Ex: (vb) is verb ; (n) is noun ; (adj) is adjective.