Some terms differ by one or two letters but have a rather distinct or even an opposite meaning. For example:

🦓 osmolarity / osmolality

🦓 absorption / adsorption

🦓 words with hypo- / hyper- prefixes

🦓 words with intra- / -inter- prefixes

🦓 aerobic / anaerobic

🦓 qualitative / quantitative

🦓 dehydro- / dihydro- in chemical names

Have you encountered similar terms in English or another language? Continue the list in the comments.

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