#initial-load-header-loader { visibility: hidden!important; } #initial-load-content { visibility: visible!important; } .expandable .expandable-control { display: none!important; } .expandable .expandable-content { display: block!important; visibility: visible!important; max-height: none!important; height: auto!important; }

R.O.

Receiving Office.

Receiving Officer.

Regimental Order.

British. Royal Observatory.

RELATED CONTENT

ATW: What does 🎃 - Jack-O-Lantern Emoji mean?Read more in this article about some frequently asked questions and fun facts related to our definitions.

Who Is Jack In Jack-o’-lantern, Anyway?Who, or what, is the namesake of this autumn tradition?

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019