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"Así" is a form of "así", an adverb which is often translated as "like this". "Noción" is a noun which is often translated as "notion". Learn more about the difference between "noción" and "así" below.
el noción(
noh
-
syohn
)A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
2. (knowledge)
a. smattering  (of languages)
Manuel tiene nociones básicas de portugués porque vivió en Lisboa un mes.Manuel has a smattering of Portuguese because he lived in Lisbon for a month.
b. basics 
Me apunté a clase de piano porque solo tenía unas nociones pero quería ser profesional.I started attending piano lessons because I only had some basics but I wanted to become a professional.
c. rudiments 
El profesor de tecnología enseñó las nociones básicas de mecánica.The technology professor taught the basic rudiments of mechanics.
así(
ah
-
see
)An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
a. like this 
¿Cómo lo hago? ¿Así?How should I do it? Like this?
Cose el vestido así.Sew the dress like this.
b. like that 
Me encanta cuando bailas así.I love it when you dance like that.
Solía cocinar la paella así para mis hijos.I used to cook paella like that for my kids.
c. this way 
¿Cómo puedes hablar así de tu esposo a sus espaldas?How can you talk this way about your husband behind his back?
d. that way 
Si lo haces así, tardarás más tiempo que si lo haces como yo te decía.If you do it that way, it'll take longer than if you do it the way I told you to.
e.  no direct translation
This refers to an idiomatic word or phrase for which there is no word-for-word translation.
¿Y así acaba la película? - Sí, el protagonista muere.And is that how the movie ends? - Yeah, the main character dies.
Eladia y Pedro se conocieron en una fiesta. - Así nos conocimos también Ángel y yo.Eladia and Pedro met at a party. - That's how Angel and I met too.
An adjective is a word that describes a noun (e.g., the big dog).
a. like that 
Alfredo es demasiado educado, ¿no crees? - Pues a mí me gustan los hombres así.Alfredo's too polite, don't you think? - Well, I like men like that.
b.  no direct translation
This refers to an idiomatic word or phrase for which there is no word-for-word translation.
¿Oíste lo que me dijo María? - Olvídalo, ella es así.Did you hear what Maria said to me? - Forget about it. That's the way she is.
Rosa, a ti te gusta Antonio, ¿no es así?Rosa, you like Antonio, don't you?
A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
a. even if 
Entregaré la traducción mañana, así tenga que pasarme la noche trabajando en ella.I'll submit the translation tomorrow, even if I have to spend all night working on it.