Vocabulary Lesson 26 bigamy – the criminal offense of marrying one person while still legally married to another monolith – a column or monument made from a large block of stone bicuspid – having two points or cusps monotheism – the belief that there is only one deity biennial – lasting or living for two years; happening every second year monologue – a long speech made by one person that often monopolizes the conversation bilingual – using or able to use two languages monotony – uniformity or lack of variation in pitch, intonation, or inflection bilateral – having or formed of two sides monogamy – practice of being married to only one person at a time