Sorry I don't see a way to use hiragana here on mobile, but anyway...
I've noticed a lot of words are introduced as adjectives, but then used (or even defined) in noun form. Like "shinpai" is marked as an adjective, but the definition (worry, anxiety) sounds like nouns.
I'm also fairly sure I've heard "shinpai suru" as a suru verb assist for "to worry" , but the dictionary here doesn't mention that even though some other words like benkyou do mention that.
I'm just curious how to keep track of what parts of speech a word can be when the dictionary only seems to mention adjective forms the most.
In Japanese, a lot of words like shinpai (心配) can be used as nouns, na-adjectives, and even verbs when paired with suru—so shinpai suru means “to worry.” Dictionaries usually just list the most common form, which can be a bit confusing, but it’s super normal for words like this to do triple duty. A good way to keep track is to look out for these patterns: if a noun expresses an action or feeling, chances are it can also be used with suru to make a verb. You’ll spot this more easily by checking example sentences, watching native media, or using dictionaries like Jisho that show usage examples.
All right that makes sense. Most of the time I saw it in a verb role in sentences was with shiteiru, which I assume is the same verb, but I haven't gotten that far yet. I'm taking my time absorbing vocab before advancing grammar too fast lol.
To be fair, renshuu takes its dictionary data from JMDict, which does include multiple parts of speech for each sense of an entry, but renshuu usually doesn't display them all. In JMDict, 心配 is marked as a na-adjective, suru-verb, transitive verb, and a noun. However, like ヒズ said, it's usually better to see the words in action or cross-check with other dictionaries to be sure how to use them.
