Pronouncing the word "theater" correctly is important for non-native English speakers to master. Theater is a noun of French origin and is pronounced with a long "e" sound followed by a "t" sound. The "e" sound should be drawn out to two syllables.

To say the word "theater" correctly, start by forming your lips into an "eh" sound. Keep your tongue in place and keep your jaw relaxed. Your tongue should be slightly forward in the mouth.

Next, move your tongue up to the roof of your mouth and make the "t" sound. Your lips should remain in the same position. Make sure the "t" sound is crisp and clear.

The last part of the word is the "er" sound. This should be pronounced with the tongue slightly more forward than the "t" sound and with the jaw slightly more relaxed. The "er" sound should be slightly longer than the "t" sound.

To practice saying the word correctly, repeat the word several times. Make sure to focus on the correct pronunciation of the first syllable and the "t" and "er" sounds. With practice, you will be able to say theater correctly.