1 noun ED learnerfeabhsaitheoir masc3 c m u2 noun person/thing getting betterfeabhsaitheoir masc3 c m ubest improver awardgradam an duine is mó feabhas, duais don duine is mó ar tháinig feabhas air3 noun AGR, COOK additivefeabhsaitheoir masc3 c m usoil improverfeabhsaitheoir ithreach4 noun person/thing that improves sthhe was a great improver of the breedchuir sé an-fheabhas ar an bpórit's a magazine for home improversis iris í do dhaoine a bhíonn ag cur caoi ar a dtithe, iris do dhaoine a bhíonn ag athchóiriú a dtithe is ea í