This is the 5410th most frequent Spanish word.
muchísimo
"Muchísimo" means "very much" or "an extremely large amount."
In this sentence, 'muchísimo' intensifies gratitude, emphasizing a great extent of thankfulness.
Te agradezco muchísimo por tu ayuda.
I thank you very much for your help.
Here, 'muchísimo' exaggerates the level of heat, indicating extremely high temperatures.
Hace muchísimo calor fuera hoy.
It's extremely hot outside today.
In this case, 'muchísimo' enhances the enjoyment described, showing an intense level of satisfaction.