I can think of several.
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Some four letter words ending in L are:ballbellbillboilbullcallcellcoilcoolcurlearlfailfallfeelfellfillfoilfoolfoulfowlfullgallgoalgillgullhallhailheelhellhillhulljelljailjowlkeelkilllolllullmallmailmealmillmoilmullnailnullpailpallpeelpillpollpoolpurlrailreelrollsailsealsellsillsoiltailtalltealtelltoiltooltollveilwailwallwealwellwillyellzeal
unnatural
Arrival, alcohol
shawl
issue