[[day after day]] is a synonym of [[day in day out]]
{"dataset": "/d/wordnet/3.1", "license": "cc:by/4.0", "sources": [{"contributor": "/s/resource/wordnet/rdf/3.1"}], "surfaceEnd": "day in day out", "surfaceStart": "day after day", "surfaceText": "[[day after day]] is a synonym of [[day in day out]]", "weight": 2.0}
