Insulate has 3 syllables and the stress is on the first syllable.
# | Sentence | |
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1. | You'll end up getting an electric shock if you don't insulate that wire. | |
2. | Today's spacesuits are pressurized, have an oxygen supply, protect the astronaut from micrometeoroid bombardment while spacewalking, and insulate the astronaut from the severe temperature changes experienced in space. |