What about Fear of water? Phobias: xenophobia definition is a bit simplistic; yes 'strangers' but also more towards the fear of foreigners. Usually, used socially and culturally than just 'strangers' but I digress.
The Color Thesaurus, what a chart! Imagine creating this kind of chart by asking kids to determine what "colour" is a word. (We could them ask them to write a poem or a story and use that chart to see what colour it is.