basis
n. countablen. the main reason or foundation for an idea or system. You also use it to describe how often something happens, like on a daily or weekly basis.
n. the underlying support or foundation for an idea, argument, or process. Often used in prepositional phrases to indicate the frequency or method of an activity.
We meet on a weekly basis to discuss our progress.
The company hires new staff on a temporary basis before offering them a permanent contract.
Scientific theories must be evaluated on the basis of empirical evidence rather than personal intuition or anecdotal reports.
From Latin basis, from Ancient Greek βάσις (básis), from Proto-Indo-European gʷémtis, derived from Proto-Indo-European gʷem- (whence also come). Doublet of base.
Frequently used in the construction 'on a [time period] basis' to function as an adverbial of frequency.
on a daily baseon a daily basisLearners often confuse the noun 'base' (a physical bottom) with 'basis' (a foundation for an idea or a frequency).