If you want the vague
definition: A person whose job is to teach children, teenagers, or adults depending on the type of
school.
If you want a more descriptive
definition:
There are three types of teachers.
1. An awesome teacher, someone who's
funny and is a very kind person deep down. Someone who everyone says is their favorite teacher, and actually cares about their students. This is the rarest kind.
2. A teacher that is in the middle. Someone who is awesome some of the time, but an asshole from hell the rest of the time. This, or a teacher that no one really cares about, who isn't one particular kind.
3. A teacher that is a bitch from hell, even if it's a man. From my knowledge (I'm still in
school), this is currently the most common type of teacher. This is a teacher that is normally an old, grumpy
bitch who seems to keep her job for the sole purpose of making your life a living hell. This kind of teacher delights in giving students piles of homework because (s)he seems to enjoy it; the kind of teacher that hates everyone. This kind of teacher will get you in trouble just because (s)he doesn't like you.
Some teachers are actually
nice, but most are horrible. This is what people who went to
school in the past, or were home schooled,
don't seem to realize.