What are some of your favorite 日本語の言葉?

Edit: just realized I should probably be using 単語 over 言葉. Always learning…

Just curious / hoping I can learn a few new ones! A few of mine:

一言: I just love the way it sounds. And the meaning is almost poetic in my mind. \
人々: Again, it just sounds neat! Very useful word too. Honestly any word beginning with ひと tends to hit my ear just right (一つ、一人 etc.) \
久しぶり: Not only flows off the tongue, it also has a really useful meaning. Once I learned this I started hearing it everywhere too; seems to be a very common term.\
結局: Another word that is phonetically beautiful to me. The meaning is a bit intriguing as it's usually given as "in the end" or "after all" but can also be used in an almost denigrating manner. For example I've heard it used in phrases like "Men – they're always like this after all!" I wish I remembered the exact Japanese phrasing but I do not.\
能力: 力 (りょく) is one of my favorite sounds in the entire language and this was the first of many words I've learned that end this way.\
紅葉: Not the most interesting word phonetically but the meaning is so poetic. My favorite word in English is "autumnal" – go figure.\
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Which 日本語の単語 have you been enamored with recently?

by TheFranFan