Plug on the bottom of engine

2003 Lincoln aviator, what is the plug on the bottom of the engine called. It holds all of the fluids in. Kinda Like a pressure releave plug.

what?

I'm not sure... There is a plug on the bottom of the engine.

The oil pan drain plug?

No. Not that

If it doesn't look like a bolt head then at one time it was stripped out and replaced with some crazy looking plug,Is that what you have?

No it's not that plug.

No...

I was told just now it's called a freeze plug

Those press into the side of the block,round silver in color.

Does this sound familiar... They called it a freeze plug

yes

Does this cost a lot to fix. While I still need to buy a starter also.

The part cost is minimal and the labor might be high but it all depends on how hard it is to get to.