The term "give guess" can be replaced by various other synonyms. For instance, one could use "estimate" to indicate an approximation of the answer. Another appropriate synonym for "give guess" would be "predict," which suggests a slightly more confident assumption about the outcome. Additionally, "hypothesize" could imply that the guess is based on some form of logical reasoning or evidence. "Speculate" could be a more creative and exploratory synonym, suggesting that the answer is far from certain. Finally, "conjecture" is a more abstract word that suggests the guess is based on limited evidence or intuition rather than on clear and precise data.