“OR” Flag in .htaccess mod_rewrite

From http://httpd.apache.org/docs/current/mod/mod_rewrite.html

ornext|OR (or next condition)
Use this to combine rule conditions with a local OR instead of the implicit AND. Typical example:

RewriteCond %{REMOTE_HOST}  ^host1  [OR]
RewriteCond %{REMOTE_HOST}  ^host2  [OR]
RewriteCond %{REMOTE_HOST}  ^host3
RewriteRule ...some special stuff for any of these hosts...