Jack
/dʒæk//dʒæk/Word Originlate Middle English: from Jack, familiar form of the given name John. The term was used originally to denote an ordinary man, also a youth (mid 16th cent.), hence the ‘knave’ in cards and ‘male animal’. The word also denoted various devices saving human labour, as though one had a helper (sense (1), and in compounds such as jackhammer and jackknife); the general sense ‘labourer’ arose in the early 18th cent. and survives in lumberjack, steeplejack, etc. Since the mid 16th cent. a notion of ‘smallness’ has arisen, hence senses (4) and (5).
noun
jackfruit
(botany) jackfruit
every man jack: everyone
Jack and Gill (Jill)
Jackfruit wood
to jack up one's job
noun
(nautical) flag ((usually) indicating nationality)
British flag
every man jack: everyone
Jack and Gill (Jill)
a device for raising heavy objects off the ground, especially vehicles so that a wheel can be changed
an electronic connection between two pieces of electrical equipment
a card with a picture of a young man on it, normally worth more than a ten and less than a queen
a small white ball towards which players roll larger balls
a children’s game in which players bounce a small ball and pick up small metal objects, also called jacks, before catching the ball
anything or nothing at all
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