It measures air speed—not ground speed, but the speed of the airplane at altitude.
A trip to the Rockies might have been more our speed, but we chose Disney World because we wanted it to be easy.
The problem is, even child labor officials aren't quite up to speed on what it means to protect kids from commodification.
Myth 3: Hot peppers and green tea will speed up your metabolism.
“This is very real, this mixture of speed and accuracy,” Sacks said.
You notice by the speed of the train that we are already mounting upwards.
All started at speed to meet her, but presently Mrs. Raymount sank on the grass.
At a signal from Ernest he increased the speed and soared upward.
I pray you to speed a bolt against yonder shield with all your force.
The stars then speed by our masts and funnel till the last is gone.
Old English sped "success, prosperity, advancement," from Proto-Germanic *spodiz (cf. Old Saxon spod "success," Dutch spoed "haste, speed," Old High German spuot "success," Old Saxon spodian "to cause to succeed," Middle Dutch spoeden, Old High German spuoten "to haste"), from PIE *spo-ti- "speed," from *spe- "to thrive, prosper" (cf. Sanskrit sphayate "increases," Latin sperare "to hope," Old Church Slavonic spechu "endeavor," Lithuanian speju "to have leisure").
Meaning "quickness of motion or progress" emerged in late Old English (usually adverbially, in dative plural, e.g. spedum feran), emerging fully in early Middle English. Meaning "gear of a machine" is attested from 1866. Meaning "methamphetamine, or a related drug," first attested 1967, from its effect on users. Speed bump is 1975; figurative sense is 1990s. Full speed is recorded from late 14c. Speed reading first attested 1965. Speedball "mix of cocaine and morphine or heroin" is recorded from 1909.
Old English spedan "to succeed, prosper, advance" (see speed (n.)). Meaning "to go fast" is attested from c.1300. Meaning "to send forth with quickness" is first recorded 1560s; that of "to increase the work rate of" (usually with up) is from 1856. Related: Speeded; speeding.
The ratio of the distance traveled by an object (regardless of its direction) to the time required to travel that distance. Compare velocity.
An amphetamine, esp Methedrine2 (1960s+ Narcotics)
Early system on LGP-30. Listed in CACM 2(5):16 (May 1959).