Glossary

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
  • UN Secretary-General’s Policy Committee Decision on Durable Solutions

    This decision establishes priorities and responsibilities in supporting the sustainable reintegration of returning refugees and internally displaced persons in the aftermath of conflict.

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  • UN security-level system

    The UN security-level system (SLS) is designed to describe the security environment that exists in an area or location where the United Nations operates. A security level is determined using a structured threat assessment, which evaluates five categories: armed conflict, terrorism, crime, civil unrest and hazards. Following this evaluation, a security level is determined as: 1 - Minimal; 2 - Low; 3 - Moderate; 4 - Substantial; 5 - High; 6 - Extreme. As the level changes, there are specific actions required within the UN Security Management system.

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  • Unaccompanied and separated children (UASC)

    Children who are separated from their parents, families or another adult caregiver in a situation of displacement.

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  • United Nations Volunteers (UNV)

    The volunteer arm of the UN which serves as an operational partner in development cooperation and humanitarian aid at the request of UN member States. It deploys qualified volunteers to different UN organizations. 

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  • Unmet need (RBM term)

    The needs that may not be met if funding falls short of the ExCom-approved budget (potential gaps).

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