noun Download 🔗Share A line (of seaweed or differently coloured sand etc) on the shore showing the level of high or low tide Examples : "After the storm, a dark tidemark of seaweed showed how high the waves had reached on the beach. " environment geography geology nature ocean nautical place weather Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share (by extension) any mark showing the limit of some past activity Examples : "The stack of unread emails on my boss's desk formed a clear tidemark of how busy he'd been last week. " mark past history Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A line of scum left on a bath tub when the water is drained away Examples : "After my long bath, a dirty tidemark was left around the tub. " appearance utility environment mark Chat with AIVocabulary GamePractice Reading