How stress the word refrigerator?

You can stress different syllables in the word "refrigerator" depending on what you want to emphasize. Here are a few options:

To emphasize the object itself: REfrigerator

To emphasize the cooling function: ReFRIgerator

To distinguish it from something else: Refrigerator, not the freezer.

You can also stress the word differently depending on the context of the sentence.

For example:

"We need to buy a new refrigerator." (Stressing "new")

"The refrigerator is making a strange noise." (Stressing "refrigerator")

Ultimately, how you stress "refrigerator" depends on what you want to communicate.