I'll be back before dinner =&gt; Dinner acts as a time reference<br/><br/>Let's discuss it over dinner =&gt; Dinner acts as a period of time<br/><br/>I'll see you at dinner =&gt; Dinner acts as a place<br/><br/>We are going out for dinner =&gt; Dinner acts as a purpose.<br/><br/>Are my interpretations of these prepositions with dinner correct?<br/><br/>Thanks!