Meaning of SECURELY in English

SECURELY

[adverb]Please ensure that your seatbelts are fastened securely.I'd locked my bike securely to a lamp-post but someone still managed to steal it.For a moment it looked as if he would drop the ball, but he held it securely.The election result leaves her securely in office until the end of the decade.He has given up political power, but he remains securely in control of the army.

Cambridge English vocab.      Кембриджский английский словарь.