bisan conjunction English. A conjunction that introduces a concessive margin or phrase: even if, even though, no matter how or what. Example sentence: Subanen. Bisan pa pegdelu' nami dun, ndi' mesu'at. English. Even for us to touch it is not allowed. Synonym. pia 2 pronoun bisan dita' bisan tanda' English. A relative pronoun, everywhere, no matter where.