What does it mean,There is no smoke with out fire?

This phrase means that rumors or accusations usually have some basis in truth. Just like how smoke is often a sign of a fire, rumors or suspicions are often based on some truth or evidence.

The proverb "There is no smoke without fire" means that there is usually some truth or basis to a rumor or accusation. It suggests that even if there is not direct evidence or proof, the very existence of a rumor or accusation often indicates that something has happened or is happening.

In other words, it is unlikely that people would start talking about something if there was nothing to it. Therefore, it is important to take rumors and accusations seriously, even if they cannot be immediately verified, and to investigate them further to determine their validity.