The meter is the base unit of length in the International System of Units (SI), which is the most widely used system of measurement in the world. It is defined as the distance traveled by light in a vacuum in 1/299,792,458 of a second.

Here are some other examples of units in physics:

* Second (s): the base unit of time.

* Kilogram (kg): the base unit of mass.

* Ampere (A): the base unit of electric current.

* Kelvin (K): the base unit of temperature.

* Mole (mol): the base unit of amount of substance.

* Candela (cd): the base unit of luminous intensity.

These are just a few examples, and there are many other units used in physics depending on the specific field of study.