I think its Failure
There are only two letters starting with L that I can think of; the Letter of the alphabet, which is "L" and the Word "Letter." As "Letter" is longer than "L" I can only assume that the word "Letter" is the longest letter starting with L. lymphoblastic leukemia
Words that start with the letter "L"LetterLaughLickLoudLimeLetLectureLiteratureLotLoveLegLocalLolipopLettuceLimpLampListListenLookLaughterLanturnLowLashLockLockerLocketLuteLimoLimboLiveLipLongLackLassoLuxuryLuxurious
listen
=Love=
eternal
letters
I think its Failure
There are only two letters starting with L that I can think of; the Letter of the alphabet, which is "L" and the Word "Letter." As "Letter" is longer than "L" I can only assume that the word "Letter" is the longest letter starting with L. lymphoblastic leukemia
Liberalness is another word for generosity starting with the letter L.
Words that start with the letter "L"LetterLaughLickLoudLimeLetLectureLiteratureLotLoveLegLocalLolipopLettuceLimpLampListListenLookLaughterLanturnLowLashLockLockerLocketLuteLimoLimboLiveLipLongLackLassoLuxuryLuxurious
lease
listen
=Love=
Slicing.
quickly
There's only 7 leters there. The biggest word is taggy.