Question

correct the one word that is spelled incorrectly. elizabeth awoke to a rumble of thunder and peered out her bedroom window just in time to see a flash of lightining on the horizon.

Explanation:

The word "lightining" is misspelled. The correct spelling for the phenomenon of a flash of electric discharge in the sky is "lightning".

Answer:

The incorrectly spelled word is "lightining", and the correct spelling is "lightning".