Added 10 October 2026 lifo noun Categories: ActionsRare Words noun ! Definition from WordNet 3.1, Princeton University. More about lifo at Wordnik → Where our words come from → Inventory accounting in which the most recently acquired items are assumed to be the first sold. Related Words: iifellfeaoultimofamilvhousothorohistoiywhosolilopushdown Back to today's word