Yes there is in fact. It's a small difference but one anyways. A search engine is just that it searches, and in the context you are talking about its a web search engine but the term "Search Engine" can apply to many other things. A Web portal is more like Yahoo. They offer mail, the weather, news, etc etc on the front page as well as a search Engine.
is a website "hit" a click that comes from a search engine? and a "visit" a click to a website that does not come from a search engine?
Yes, a search engine is a website.
If you can get lots of reciprocal back link on search engine of you website. than you get top ranking on search engine.
There is not really a diffrents between those because there the same thing
the beaucomp websites, website who have a topical search engine.
A crawler is the bot that crawls a site to rank it and or submit it into a search engine. A directory search engine is a website that has websites listed on it and allows you to search for what you are looking for inside of the directory.
Google developed a better search engine and took over the market. Yahoo had a golden opportunity but squandered it.
no
tobyMac's website is "tobymac.com" if you dont find it just search it in your search engine.
Wikipedia is an encyclopedia website
You have different tab option to search such as general, news, image video etc. It has search query box and button to search a website. Some of search engine website has I'm luckly button which redirects to website that relates to query keywords or phrase. It has settings to display the number of search results and region.