"Llorar" is "to cry". "Llores" (tú llores) is a subjunctive form. For instance: "I don't want you to cry" would be "no quiero que llores" (we understand it refers to you). Llanto means "crying" like when you say "I heard a crying", "oí un llanto". As for "grito", it's also a noun, more as a "yell" or a "shout" than a cry.

In fact the verb "to cry" means that the tear drops are falling from the eyes no matter the reason (cutting onions, a little spot inside the eye, felling sad or even if you receive a very good notice of joy). The word "llores" not also can be used as a subjunctive form. it can also be used as the negative form of the imperative verb of the single second person (Tu ) "dont cry" (no llores). If you want to use it referring to the 2nd. person in plural (you, 2 or more) you have to change the final letter "s" to a "n" (no lloreN). Have a nice day,

Llorar is a verb (lloro, llores, lloramos) - is when we go out tears from the eyes. Llanto is a cry that can be produced also to mourn, is produced by the mouth. Grito, may be a cry or not crying, pain, fright, joy.