el llamador - doorbell, door-knocker, telephone ringer
  la lentilla - contact lens
  el lucero - bright star, morning star, evening star
  el liquen - lichen (either a skin diseases or a...
  la lenidad - leniency
  el letargo - lethargy, hibernation
  la levadura - yeast, leavening
  el lucimiento - brilliance (usually in a figurative...
  la lasitud - fatigue, weariness, tiredness,...
  la ludopatía - compulsive gambling, gambling addiction
  el lodazal - quagmire (literal or figurative), bog
  la logopedia - speech therapy, the science or study...
  la lenteja - lentil
  el lavaplatos - dishwasher (machine)<br>...
  la llanta - rim (of a wheel or tire)
  el lactante, la lactante - a baby who breastfeeds, a baby who...
  el lucro - earnings, profit, financial gain
  la llana - trowel
  el juicio - trial, sanity, good judgment, opinion
  el judío, la judía - Jew