{v. phr.} To stay calm when there is trouble or danger. * /When Tim heard the fire alarm he kept his head and looked for the nearest exit./ Compare: COUNT TO TEN. Contrast: LOSE ONE'S HEAD.
See: KEEP ONE'S HEAD.
KEEP ONE'S WITS ABOUT ONE
Meaning of KEEP ONE'S WITS ABOUT ONE in English
Dictionary of English idioms . Словарь английских идиом. 2012