[Home](./index.md) > [kibana-plugin-plugins-expressions-server](./kibana-plugin-plugins-expressions-server.md) > [ExpressionFunctionDefinitions](./kibana-plugin-plugins-expressions-server.expressionfunctiondefinitions.md) > [var](./kibana-plugin-plugins-expressions-server.expressionfunctiondefinitions.var.md) ## ExpressionFunctionDefinitions.var property Signature: ```typescript var: ExpressionFunctionVar; ```