Abbreviations also include acronyms and initialisms. Buzzwords often originate in jargon, acronyms, or neologisms. There is a question about how to pluralize abbreviations, particularly acronyms. The students "used few abbreviations, acronyms, and emoticons". The oil and gas industry uses many acronyms and abbreviations. This is a list of computing and IT acronyms and abbreviations. This is a list of the acronyms and abbreviations used in avionics. This has led to a proliferation of new abbreviations, acronyms and initialisms. The following are examples of single-letter abbreviations used in three-letter acronyms (TLAs). It should be free of technical jargon and information technology acronyms. This is a list of geographic acronyms and initialisms. Polish corporate speak contains many borrowed English acronyms, words, and usages. As syllabic acronyms they are not normally capitalized. In Indonesian, portmanteaus are often used as both formal and informal acronyms and referrals. See list of United States Marine Corps acronyms and expressions.