Noun
grounds; foundation; authority
「広辞苑にこう書いてあります」と言って、広辞苑を唯一の拠り所に論陣を張る人がよくいる。There are a lot of people who say, "it says this in Koujien," and use that dictionary as the only grounds for their argument. support; prop; something upon which to rely
Also written 拠【よりどころ】