A search engine is usually a website which allows you to search the internet for information. The search engine lists results that relate to your key words.
A server is a physical computer dedicated to run one or more services, to serve the needs of the users of other computers on a network or internet.
Junk email sent to many people at once, usually involving advertising or offering services. SPAM is very deeply frowned upon by most internet users, and where it involves advertising or a false return address it is particularly disliked.
Solid State Drive is a data storage device that uses integrated circuit assemblies as memory to store data.