As nouns the difference between pan and pak

is that pan is a wide, flat receptacle used around the house, especially for cooking while pak is deliberate misspelling of lang=en.

As a proper noun Pan

is greek god of nature, often visualized as half goat and half man playing pipes. His Roman counterpart is Faunus.

As an acronym PAN

is acronym of lang=en.

As a verb pan

is to wash in a pan (of earth, sand etc. when searching for gold).

As an adjective pan

is pansexual.