QUICK ANSWER
"Lazo" is a form of "lazo", a noun which is often translated as "bow". "Listón" is a noun which is often translated as "strip". Learn more about the difference between "listón" and "lazo" below.
el listón(
lees
-
tohn
)A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
a. strip
Elegimos un listón sencillo de nogal para enmarcar la foto de nuestros hijos.We chose a simple walnut strip to frame the photo of our kids.
b. lath
El obrero utilizó una fila de listones para soportar las tejas del techo.The construction worker used a row of laths to support the slates of the roof.
2. (sports)
a. bar
Ninguno de los saltadores pudo superar el listón a esa altura.None of the high jumpers was able to clear the bar at that height.
4. (figurative) (bar)
A phrase used as a figure of speech or a word that is symbolic in meaning; metaphorical (e.g., carrot, bean).
a. level
El listón para entrar en esta facultad es muy bajo y por eso está masificada.The entrance level required by this university is too low, which explains why it is overcrowded.
a. ribbon
El listón de la cintura daba al vestido un toque de color.The ribbon on the waist of the dress gave it a touch of color.
el lazo(
lah
-
soh
)A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
2. (ligature)
a. ribbon
La niña llevaba un lazo alrededor de la coleta.The girl wore a ribbon around her ponytail.
4. (rope)
5. (hunting)
6. (link)
a. wedding cord
El lazo se enredó en el velo de la novia.The wedding cord got tangled in the bride's veil.