What does SAT stand for?

Could you possibly enlighten me on the acronym SAT? I've heard it mentioned frequently in the context of educational assessments, but I'm not entirely certain what it stands for. Could you perhaps provide a brief explanation, elucidating its significance and origin? Additionally, if there are any other related acronyms or terminologies that I should be aware of in this domain, I would greatly appreciate it if you could share them as well. Thank you for your assistance in clarifying this matter for me.