The Pinyin final "an5" is used in the second half of Pinyin syllables. In MandarinBanana's mnemonic system, the second half of a Pinyin syllable is always represented by a location. You can visit the Pinyin index to see all Pinyin syllables from this mnemonic group, or to see all Pinyin syllables "an5" can appear in.
Think “ahn” with a clean, quick N at the end, and say it with a neutral tone.
English doesn’t have this sound exactly the same way Mandarin does, but you can get close:
Key adjustment: Many English speakers turn “an” into something like “æn” (as in “can”). For Mandarin an, avoid that “cat” vowel; keep it more “ah” than “a” in “cat.”
If your vowel feels too small or central (like “uh”), it’s not an.