opine

(verb) express one's opinion openly and without fear or hesitation. Synonyms: speak up, speak out, animadvert, sound off. Example: "John spoke up at the meeting."

(verb) expect, believe, or suppose. Synonyms: think, suppose, imagine, reckon, guess. Examples: "I imagine she earned a lot of money with her new novel." "I thought to find her in a bad state." "He didn't think to find her in the kitchen." "I guess she is angry at me for standing her up."