Correct spelling, explanation: the word lieu is a borrowing, like many other English words. It comes from Old French lieu, lou, and from Latin locum. As you can see, the construction remained exactly the same as in the French version. Just remember to keep the vowels in the correct order. Lieu is the correct form and leiu is incorrect.

Incorrect spelling, explanation: the correct version of this word’s spelling – lieu – can be a little problematic. As you can see, it contains three vowels. They should be arranged in the following order: first -i, then -e, and finally -u. If you get the letters wrong, you’ll make a mistake. Leiu is just an error.

Definition of lieu:
part of the idiom in lieu of – instead of
In some cases, a telephone interview will be held in lieu of a personal visit.
We used saccharine tablets in lieu of sugar.

Collocations with :
Some most commonly used collocations include: in lieu of.
What country uses an income tax in lieu of an import tax?
A 10 percent service charge is added in lieu of tipping.