I worked for a company for eight years. I lost my job in the 8th year. Do I receive any sort of pension?

No one here can guess and come up with a 100% correct answer. What do the pension papers say? What does your former employer say?

There are several types of vesting. Some companies have graduated vesting where you vest a percentage each year. Some plans have cliff vesting where you become 100% after x years.

ERISA requires that you be 100% after 10 years, but you could be 0% until then.

Also, how you lost your job could matter.

But we can't tell you, it depends on rules specific to your company or employment contract.