as to

preposition

1

: as for, about

at a loss as to how to explain the error

2

: according to, by

graded as to size and color

Synonyms

• about
• apropos
• apropos of
• as far as
• as for
• as regards
• as respects
• concerning
• of
• on
• regarding
• respecting
• touching
• toward
• towards

Examples of as to in a Sentence

I'm in a quandary as to how to deal with the problem.

Recent Examples on the Web

However, none of the American banks’ CEOs has given a credible explanation as to why exactly fleeing this group was necessary; worst yet, none has explained what the commitment to net-zero greenhouse emissions of his or her bank will be. —Mayra Rodriguez Valladares, Forbes, 13 Jan. 2025

California’s wildfire history offers hints as to how long wildfires generally last. —Eric Levenson, CNN, 13 Jan. 2025

Many theories persist as to what happened, whether Tony was killed or whether the cliffhanger insinuates that the mob boss would always live with the possibility of being murdered because of his dangerous profession. —Skyler Trepel, People.com, 11 Jan. 2025

Bahia does need more care as to watering, fertilizing and mowing to have a good lawn again. —Tom MacCubbin, Orlando Sentinel, 11 Jan. 2025

Word History

First Known Use

14th century, in the meaning defined at sense 1

Kids Definition

as to

preposition

1

: with respect to : about

confused as to what happened

2

: according to sense 1

graded as to size