Duhaime's Law Dictionary X Legal definitions for terms and concepts beginning with X X A form of signature upon contracts by persons illiterate. Xenophobia Racially-based intolerance of immigrants. X-Rated Sexually explicit material. Page1 (X - X-) Always looking up definitions? Save time with our search provider (modern browsers only) If you find an error or omission in Duhaime's Law Dictionary, or if you have suggestion for a legal term, we'd love to hear from you!