Galvanized (verb)

According to Merriam Webster, galvanized means to coat (iron or steel) with zinc . This word could be found in the story “Sweat” by Zora Neale Hurston. For example, ” She went out into the yard and returned with a galavanized tub and set it on the washbench.” When i first came across this word, i knew it was describing how the bucket looked in shape color or size. When I then looked up the word and knew it was a steel or iron tub , I remembered thats what the women used to wash clothes with in the past. Also with her being an African American women being inferior to the white race, she had to wash their clothes for them by hand.