Yes.
1. Comments. Study your own admin panel. There is a lot of stuff under Options > Discussion.
2. Posts (if you meant that by “entries”). Make them “Contributors” = they can write but not publish.
And for general knowledge read the Codex
I’ve been up and down the Discussion Options and have both options under E-mail checked off and also under “Before a comment apprears”, checked off “An Administrator must approve …”, yet when I go to the site as an average user and enter a comment, it appears immediately.
Nah… Only the commenter sees it (in better designed themes there is also a warning that the comment is in moderation). Nobody else is seeing it.
So, what you are saying is, if I go to a different computer I will not see the new comment?!
Yeah. I just checked to be sure (though I knew it usually behaves like that).
More: Not logged in as admin, just as a visitor – do you see my test comment???
Actually, while you were entering, I displayed the site on my sons computer and my comment was not visible, as your was not either. Thanks for your help.