to guess

https://tts.langeek.co/read?text=dG8gZ3Vlc3M&hash=366e1c862c1ee380f30bf5e1f3dacf8b2c0e4b79&lang=en&cache-only=0&driver=googletts&accent=US

Here you will learn some English verbs referring to assumption and estimation such as "guess", "presume", and "speculate".