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Use "thickish" in a sentence
"Slice carefully in thickish slices, and arrange on a plate."
"Serve the ham in thickish slices with the parsley sauce."
"Tall and striking, with thickish black hair later showing a signature white streak at the front, she was the beautiful young woman every male graduate student regretted not having had a tumble with, a fantasy that would have been difficult to arrange since she was, with only an occasional lapse, a lesbian."