single legislative instrument single legislative text single leg single length single lens single lesson single letter single level single lever single licence single license single lifetime single life single lift single light source single light single limit single line of code single line of text single line single link single list single living single load single loan single location single lock single locomotive single logical single login single logo single long single loop single loss single luminaire single machine single mailbox single major single male single malt scotch single malt single management single mandate single manifest single manufacturer single man single map single market for capital single market for electronic communications single market for energy single market for europeans single market for financial services single market for goods single market for payments single market for services single market has single market in energy single market in services single market means single market must single market needs single market offers single market requires single market should single market strategy single market to the single market single mark single mass single master single mast single match single material single mattresses single meal single meaning single measurement single measure single mechanism single medium single meeting single membership single member single memory single mention single menu single men single message single metal single meter single methodology single method single microphone single mind single minute single mission single mistake single model single mode single module single mold single molecules single molecule single moment in time single moment single moms single mom single monetary policy single monitor single month single morning single most important thing single motherhood single mothers single mother single motion single motor single mouse single movement single move single movie single mum single municipality single murder single muscle single muslim single nail single name single narrative single national authority single national single nation single nave single needle single negative single network single neuron single newspaper single night single node single notes single note single notification single nozzle single nucleotide single number single objective single object single observation single occasion single occupancy single occurrence single of the album single of the week single of the year single officer single office single official single one of them single one of you single one to a single one single opening single open single operating single operation single operator single opinion single opportunity single option single order single organisation single organism single organization single organ single origin single output single owner single package single packet single packing single pack single page single painting single pair single pallet single panel single pane single paper single paragraph single parameter single parcel single parent dating single parenthood single parenting single parents with children single parents single parent single participant single particle