This is the 7781st most frequent Spanish word.
mach
The Spanish word "mach" does not exist. It may be a typo or misheard term.
The word 'mach' is used as a scientific term to indicate the speed of an object relative to the speed of sound.
El avión viaja a una velocidad de mach 2.
The airplane travels at a speed of Mach 2.
Here, 'Mach' is used as a proper noun referring to the physicist Ernst Mach, after whom the speed measurement scale was named.
El término 'Mach' fue nombrado en honor a Ernst Mach, un físico destacado.
The term 'Mach' was named in honor of Ernst Mach, a prominent physicist.
In this sentence, 'Mach' again refers to the speed ratio relative to the speed of sound, commonly used in aerodynamics.