field day

nouns

(military) a day for military exercises and display
field day
domain category
the military forces of a nation
"their military is the largest in the region"; "the military machine is the same one we faced in 1991 but now it is weaker"
armed forces, armed services, military, military machine, war machine
is a type of (narrower)
a day assigned to a particular purpose or observance
"Mother's Day"
day
a day for outdoor athletic competition
field day
is a type of (narrower)
a day assigned to a particular purpose or observance
"Mother's Day"
day
a time of unusual pleasure and success
field day
is a type of (narrower)
an amount of time
"a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period"
period, period of time, time period
a day devoted to an outdoor social gathering
field day, outing, picnic