World longest character word in english grammer Share with your friends Share 0 Akshita Arora answered this Dear student The world's longest character word in English grammar is pneumonoultramicroscopicsilicovolcanoconiosis. Regards 2 View Full Answer Garv Jakhar answered this pneu mon oultr amicr oscopi csilico volc ano conio sis 1 Aadya answered this The longest word in any of the major English language dictionaries is 0 Garv Jakhar answered this with no spaces 0 Aadya answered this pneumon oultramicro scopicsilico volcanoconiosis, without space! 0 Garv Jakhar answered this was my answer helpful 0 Aarjav Kumar answered this This is the website http s://en.wiktion ary.org/wiki/ Appendix:List_of_proto` logisms/Long_ words/Titin 0 Aarjav Kumar answered this with no space 0