entry, entrée

Entry or entry means the way in, or the method for getting into a place or thing; access--
Entry into the complex is through the main gate.
Make sure that you have a ticket, or you may be denied entry.

Entry is also a verb ( action word ), meaning going into a place--
He was arrested and charged with burglary and forced entry.
The entry of the army into the city caused alarm and confusion.

Entry also means participation in a contest or sweepstakes, literally or figuratively, or the record of participation--
Make sure to include proof of purchase with your contest entry.
This entry will be our last; next year we won't be participating in the race.
Entry may mean making a record into an account book, log, or journal--
His journal entry for the first describes the incident.
Look for an entry in this amount, dated last week.

Entrée or entrée means a main dish, especially in a restaurant--
We are all having salad, and the entrée will be chicken.
We are each going to choose a different entrée, and then we'll share.

Entrée also means the right to go in to some place, literally or figuratively--
His fame assured his entrée into fashionable society.
The introduction served as an entrée into the world of high finance.

Now that you know that, you can say--
"Entry into the room was blocked by people looking at the menu on the wall, trying to choose an entrée."

Note--"entrance" also means the way into a building, most commonly the actual physical door or path--
The entrance is on the side of the building.