When someone says "take it with a pinch of salt," it means they don't fully believe what they've just heard. Other phrases that can be used as synonyms for "take with a pinch of salt" include "grain of salt," "skeptical," "don't take it to heart," "keep an open mind," "be wary of," "approach with caution," and "not to be taken too seriously." These phrases are often used in situations where the speaker is uncertain about the information being presented, and it's important to remain skeptical and take a step back before making any judgements. It's always better to be careful and cautious than to blindly believe everything you hear.