This is the verse translation, not a definition of the individual word.
and in order to make known those who are hypocrites. They were told, “Come forward, fight in the way of Allah or at least defend.” They said, “If we had known there was fighting, we would have certainly followed you.” That day they were nearer to disbelief than to faith, saying with their mouths what was not in their hearts, but Allah is All-Knowing of what they conceal.