as of

preposition

: on, at, from

—used to indicate a time or date at which something begins or ends

takes effect as of July 1

As of now, it's difficult to tell in a cancer's early stage which patients have which kind of tumor.

—Melinda Beck

As of last year [2010], women held 51.4 percent of all managerial and professional positions, up from 26 percent in 1980 …

—Kate Bolick

Examples of as of in a Sentence

Recent Examples on the Web

The illnesses began at the end of September and the most recent occurred as of Oct. 11. —Kate Gibson, CBS News, 22 Oct. 2024

Several northern Wisconsin locations are reporting peak fall color conditions as of Oct. 10, according to the Fall Color Report posted by Travel Wisconsin. —Jim Higgins, Journal Sentinel, 10 Oct. 2024

Protect Our Schools Kentucky, the campaign against Amendment 2, has spent more than $2.5 million as of Oct. 8, including on mail and media services. —Hannah Pinski, The Courier-Journal, 10 Oct. 2024

These numbers were reflected as of Tuesday, Oct. 8, 2024, at 9:10 a.m. How accurate have election odds or polls been in past presidential elections? —Alex Perry, The Enquirer, 10 Oct. 2024

Word History

First Known Use

1781, in the meaning defined above

Kids Definition

as of

preposition

: on entry 1 sense 3, at

we begin work as of Tuesday

as of the moment, things are fine