There is no word in the English language that starts with Y and ends with Z.
yes
jazz.
pez
Some words that start with L and end with L are:labellabiallapellarvallaterallaurellawfullegallentillethallevellibelliberallineallintelliterallittorallocallogicallogisticallollloyallulllyrical
Words starting with A ending with L:actualadditionaladversarialagriculturalancestralaccidentalanimalannualanvilappallappraisalapprovalarchaeologicalarchitecturalarchivalarchivalartificialarrivalasocialassailastrologicalastronomicalasymmetricalatonalatypicalaudiologicalaudiovisualavailawful
laterallocalliterallandfilllandfalllabellabiallaurellevellegallapellibelLionel (name)
lay
IRAQ
lacedladlaidlandlatchedlayeredleadledleasedlaughedleopardleashedleotardloanedloathedlatheredlovedlidlickedlackedliftedlessenedlappedliedlikedlivedlinedlingeredlordloadlocatedlongedlookedloosenedlurid
Txhjjhh
keel
camel caramel cornell
linear
Label, lapel, legal, level, libel, local and loyal are 5 letter words.
Gradual