The same thing is used with a different name in several places.
For example, the js API uses sort while the OPT_QUERY packet uses orderby:
db.users.find({}).sort(

);
{$query :

, $orderby : {last_name: 1}}

skip / offset / numberToSkip
limit / numberToReturn

It is important to use the same name everywhere and usually just use the official term from SQL or map reduce.