* Meters per second squared (m/s²): This is the standard unit of acceleration in the International System of Units (SI). It represents the change in velocity (meters per second) over time (seconds).

* Feet per second squared (ft/s²): This unit is commonly used in the imperial system of measurement.

* Other units: There are other units for acceleration, but they are less common. These include:

* Kilometers per hour squared (km/h²): Used in some contexts.

* G-force (g): This unit represents acceleration relative to the acceleration due to gravity (9.8 m/s²). One g-force is equal to 9.8 m/s².

Important Note: When labeling acceleration, it's crucial to use the appropriate unit for the specific context. For example, if you are calculating the acceleration of a car, you would typically use m/s² or ft/s².