mildew

Many Indonesian mistakenly believe "mildew" to be the English word for tobacco. It's because in Indonesia, the word "mild" is disproportionately more commonly used in cigarette advertisings compared to any other publication.

Whenever my friend asked for the location of 'mildew' plants at a park, I was confused until I realized he thought it meant tobacco—thanks to all those cigarette ads in Indonesia using 'mild' everywhere!