12-Letter Words Matching L_____T_____

There are 12 12-letter words that match L_____T_____. 2 are common words, such as LABORATORIES and LAUREATESHIP. A rarer one is LITERATENESS. In this set, I is the most frequent open letter (11 words). 2 words contain a doubled letter.

Full list 12

laboratorieslaureateshiplaparotomieslatchstringslevorotationlevorotatoryloosestrifeslumpectomieslabanotationlevitationallimitationalliterateness

About this list

Words
12 (2 common words)
Common example
laboratories
Rare example
literateness
Doubled letters
2
Ending in S
6
Most frequent letter
I (11)

Questions

How many 12-letter words matching l_____t_____ are there?

12. 2 of them are common words.

What is a common example?

LABORATORIES is among the common words in this set.