A person who installs and services gas fixtures and appliances(noun)
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Use "gasfitter" in a sentence
"The secret life of the gasfitter suggests the poem's maker, laboriously fitting words and sentences into a pattern befitting turbulent feelings and metaphysical dilemmas, as in the ninth poem of "The Gasfitter":"
"Mrs. Sieppe knew a gasfitter in Oakland who had won several times; once a hundred dollars."
"A gasfitter, when working in the house, saw the same figures no less than nine times, and so distinctly that he was able to give a detailed description of both the man and dog."