I think what you mean is "What is the Spanish word for let?" because the word "let" is an English word, not Spanish. The Spanish word for "to let" is permitir. "Let me" is "permítame."
Vayamos a jugar.
Juguemos 20 preguntas!
lets play darts
It is Spanish for "Lets go to the store to buy fruits"
it means, we´re going, lets go etc etc but it is slang not proper spanish, it can also mean to hit some one.
its antes a jugar before we play. or as you wrote it its before play
Vamos a jugar!
"Juguemos Pokémon"
Juguemos 20 preguntas!
Translation: You play
You'll need to install a language pack for that (official link included)
Well lets start by correction your question, i think what you mean is "How do you say address in spanish? Direccion is address in spanish.
v. play
Well to me lets say poky poky which in spanish is pika pika which to a girl will mean Hot Hot OR that you just want to hit
lets play darts
To play an instrument.
You touch. Or you play (an instrument).
you play badly