BAT	Bottleneck analysis tool
CATS	Community approach to total sanitation
CCT	Conditional-cash transfer
CDD	Community driven development
CEA	Cost-effectiveness analysis
CI	Confidence interval
CLTS	Community-led total sanitation
DALY	Disability-adjusted life-year
DHS	Demographic and Health Survey
GDP	Gross domestic product
HLY	Healthy life-year
HWTS	Household water treatment and storage
HWWS	Handwashing with soap
JMP	WHO/UNICEF Joint monitoring programme
MDG	Millennium Development Goal
MHM	Menstrual hygiene management
OBA	Output-based-aid
OECD	Organisation for Economic Co-operation and Development
RBA	Results-based approach
SDG	Sustainable development goal
SPA	Service provision assessment
STH	Soil-transmitted helminth
UN	United Nations
UNHCR	Office of the United Nations High Commissioner for Refugees
UNICEF	United Nations International Children’s Emergency Fund
WASH	Water, sanitation, and hygiene
WHO	World Health Organization
WTP	Willingness-to-pay