| ACRE | Agriculture and Climate Risk Enterprise |
| ADB | Asian Development Bank |
| AFD | Agence Française de Développement |
| APEC | Asia-Pacific Economic Cooperation |
| ASEAN | Association of Southeast Asian Nations |
| BAU | Business as usual |
| CAPEX | Capital expenditure |
| CBA | Cost benefit analysis |
| CFM | Climate Fund Managers |
| CreW | Caribbean Regional Fund of Wastewater Management |
| DBP | Development Bank of the Philippines |
| DFCD | Dutch Fund for Climate and Development |
| DFI | Development Finance Institutions |
| EAFRD | European Agricultural Fund for Rural Development |
| EC | European Commission |
| EFSI | European Fund for Strategic Investment |
| EIB | European Investment Bank |
| EIP | Ecosystem Investment Partners |
| EPA | Environmental Protection Agency |
| ESG | Environment, Social and Governance |
| EU | European Union |
| FAMM | Metropolitan Water Fund of Monterrey |
| FAO | Food and Agriculture Organisation |
| FMO | Dutch Entrepreneurial Development Bank |
| GCF | The Green Climate Fund |
| GDP | Gross Domestic Product |
| GLAAS | Global Analysis and Assessment of Sanitation and Drinking-Water |
| GUARDIAN | Gramalaya Urban and Rural Development Initiatives and Network |
| IADB | Inter-American Development Bank |
| IBNet | International Benchmarking Network for Water and Sanitation Utilities |
| IDA | International Development Association |
| IDH | The Sustainable Trade Initiative |
| IFC | International Finance Corporation |
| ILI | Infrastructure Leakage Index |
| JICA | Japan International Cooperation Agency |
| LGUGC | Local Government Unit Guarantee Cooperation |
| MCC | Millennium Challenge Corporation |
| MDB | Multilateral Development Bank |
| MPWI | Multipurpose water infrastructure |
| NbS | Nature-based solutions |
| NGO | Non-governmental organisation |
| NRW | Non-revenue water |
| O&M | Operation and Maintenance |
| ODA | Official Development Assistance |
| OPEX | Operation expenditure |
| PPP | Public-private partnerships |
| PSE | Producer support estimates |
| PSOD | Private Sector Operations Department |
| PWRF | Philippine Water Revolving Fund |
| PWS | Payment for watershed services |
| RRG | Renewable Resources Group |
| SAB | Sustainable Awareness Bonds |
| SDGs | Sustainable Development Goals |
| SPV | Special purpose vehicle |
| SRF | State Revolving Fund |
| TCFD | Task Force on Climate-related Financial Disclosures |
| UN | United Nations |
| UNFCCC | UN Framework Convention on Climate Change |
| USAID | US Agency for International Development |
| WMO | World Meteorological Organisation |
| WSS | Water supply and sanitation services |
| WTO | World Trade Organisation |
| WWF | World Wildlife Fund |
Financing a Water Secure Future
