日曜日ぐらいは家族とともに過ごしたい。
I have looked it up 2 dictionaries and a number of JLPT grammar exercise books but have not figured out what usage of ぐらい this is. Could somebody help and explain please?
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Sign up to join this communityWiktionary says that there exists a meaning of "at least", and their example seems to match yours:
今回{こんかい}くらいは頑張{がんば}ろうかな。- Maybe I should put in the effort at least once (this time).
See @naruto's comment - 日曜日ぐらい here would be "at least on Sundays".
And this is the translations that deepl gives for what it's worth - "I want to spend at least one Sunday with my family." although it's not clear where the "one" comes from.
Disclaimer: I don't suggest using DeepL (google translate even less so for Japanese) as a reference but it can be used to get a general direction.