Christians should have their own dictionaries—not as in a “you can’t look at my cool dictionary with Three Crosses On A Hill or White Jesus With A Lamb emblazoned on the cover of it because you aren’t Christian,” exclusionary kind of dictionary. It would be a dictionary that anyone could have. But only Christians would understand it. It would really be used as a tool for new Christians. Right after we have them stand up to a congregation of 1,000 and point to them as “VISITORS,” clapping wildly and eying them up for signs of recent sin, we can have an usher hand them a handy copy of the Christianary.
What words should be in it?
It should have standards in it, like fruit, defined as the result of Holy Spirit that church friends recognize in you, e.g., “The fruit of Alice’s hard work decorating the church with poinsettias this Christmas is her rosy glow and ability to prune the extraneous food stuck on children’s faces during fellowship time.” It would still contain the other definition (“the sweet and fleshy product of a tree or other plant that contains seed and can be eaten as food”). Naturally, that definition would be secondary.