9-Letter Words Matching _____GH__

There are 30 9-letter words that match _____GH__. 16 are common words, such as DAYLIGHTS and DOGFIGHTS. A rarer one is UNWEIGHTS. In this set, I is the most frequent open letter (28 words). 3 words contain a doubled letter.

Full list 30

Common words

daylightsdogfightseyesightsfanlightsgaslightsgunfightsinveighedmidnightsoutfightspenlightsreweighedskylights
daylightsdogfightseyesightsfanlightsgaslightsgunfightsinveighedmidnightsoutfightspenlightsreweighedskylightsstraightssunlightstealightstwilightsaffrightsunweighedbeknightscatfightsinveigherlowlightsmislightsoutsightsscraighedsennightsskreeghedskreighedthroughlyunweights

About this list

Words
30 (16 common words)
Common example
daylights
Rare example
unweights
Doubled letters
3
Ending in S
22
Most frequent letter
I (28)

Questions

How many 9-letter words matching _____gh__ are there?

30. 16 of them are common words.

What is a common example?

DAYLIGHTS is among the common words in this set.