सुनिश्चित करना meaning in English

ascertain [ascertained, ascertaining, ascertains]▼verb
[UK: ˌæ.sə.ˈteɪn] [US: ˌæ.sər.ˈteɪn]

ensure [ensured, ensuring, ensures]▼verb
[UK: ɪn.ˈʃʊə(r)] [US: en.ˈʃʊr]

make sure▼verb
[UK: ˈmeɪk ʃʊə(r)] [US: ˈmeɪk ˈʃʊr]

seal [sealed, sealing, seals]▼verb
[UK: siːl] [US: ˈsiːl]