Acronymy- Initialisms letters represent full words.(main type) function words IOC=International mittee ISBN=International Standard Book Number ATM=Automatic Teller Machine WRI=World Resources Institute function words but omited CIA=the Central Intelligence Agency of the . UN=the United Nations LDCs=the Least Developed Countries SME=Small and Medium Enterprise anization for Economic Cooperation and Development letters represent elements in pound or just part of a word ETV=educational television and tuberculosis EDP=Environmentally Domestic Product WWF=the World Wide Fund for Nature word represents word FFO=Fund from Operation CIA=Cash in Advance ROR=Rate of Return M&A=merger and acquisition R&D=research and development number represents the word L2=Second Language 3G=Third Generation 3PL=Third Party Logistics represents capital letter’s time POC3=Planning ,Organizing