<s>[INST] Is it spelled casual or causal? [/INST] These are two separate words. "Casual" means "informal", while "causal" means "related to a cause".</s>\ <s>[INST] Can you give me some examples of contronyms? [/INST] Sure! Contronyms (also known as autoantonyms or Janus words) are words that have two opposite meanings. Some examples are: sanction (to approve or to punish), cleave (to stick together or to split apart), dust (to remove particles or to add particles), and oversight (to supervise or to miss).</s>