NSF

adj. not paid due to a lack of money, defaulted due to lack of funds (about a check)

NSF is an abbreviation.National Service Framework NSF International, formerly National Sanitation FoundationNational Secessionist Forces (a fictional terrorist group from the computer game Deus Ex)National Service Full-Time, a conscript in SingaporeNational Students Federation, (a leftist Pakistani students political party)National Socialist Front/Nationalsocialistisk Front, a Swedish Nazi political party NS-Frauenschaft, a women's organization in Nazi GermanyNephrogenic Systemic Fibrosis, a serious dermatopathic syndrome in patients with kidney failureN-ethylmaleimide sensitive fusion proteinNES Sound Format (.nsf file type)Ninja Strike ForceNon-sufficient fundsNorges Speiderforbund (Norwegian Scout Association)Notes Storage Format (.nsf, file type for Lotus Notes databases)Naval Support Facility, such as NSF Thurmont (Camp David)North South FoundationNykterhetsrörelsens Scoutförbund, The Temperance Guide and Scout Association, a Swedish Scouting organization.
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Noun
1. an independent agency of the federal government responsible for the promotion of progress in science and engineering by supporting programs in research and education
(synonym) Nationaol Science Foundation
(hypernym) independent agency

NSF, Non Sufficient Funds, not paid due to a lack of money, defaulted due to lack of funds (about a check)

National Science Foundation