25According to settled case-law, the meaning and scope of terms for which European Union law provides no definition must be determined by considering their usual meaning in everyday language, while also taking into account the context in which they occur and the purposes of the rules of which they are part (see, inter alia, Case C-72/95Kraaijeveld and Others [1996] ECR I-5403, paragraph 38; Case C-549/07Wallentin-Hermann [2008] ECR I-11061, paragraph 17; and Case C-473/07Association nationale pour la protection des eaux et rivières and OABA [2009] ECR I-319, paragraphs 23 and 24).