The word "Planksheer" is spelled as /plæŋkʃɪr/. The first syllable "plan-" is phonetically pronounced as /plæŋk/, which refers to a wooden board used in construction. The second syllable "-ksheer" is phonetically pronounced as /ʃɪr/, which means the longitudinal structural member that supports the decking of a ship. Therefore, the word "Planksheer" refers to a wooden beam that supports the deck of a ship. The spelling of this word is unique and serves a specific purpose in the nautical industry.