AC: In the context of the CO board, this means aircraft. However, on the Air Canada board AC denotes Air Canada and on the American board AC denotes Admiral’s Club.

Battlefield Upgrade: An upgrade which occurs at the gate

BF: BusinessFirst

CO*: Co–Star (more information can be found here)

co.com: Shorthand for www.continental.com

COC: The Contract of Carriage. More information on the COC can be found at this link on the Continental website.

DO: An informal or formal gathering of Flyertalkers held anywhere in the world. See this thread for a longer explanation.

EasyPass/sleezy–pass: Rewards booked at the EasyPass rate (typically two or more times that of the corresponding standard reward).

EQM: Elite Qualifying Mile (one of two ways to achieve Elite status)

EQP: Elite Qualifying Point (the other way to achieve Elite status)

ETC: Electronic Travel Certificate (Think “Continental Gift Card”)

EUA: Elite Upgrade Automation, a complimentary upgrade from economy to First class or International Business class (but not BusinessFirst).

Fare Bucket/Fare Class/Class of Service: Refers to the "kind" of fare you bought both in terms of service (e.g. BusinessFirst, Domestic First, Economy) as well as the flexibility (e.g. changeable, refundable). A complete fare listing can be found here.

FC: Domestic First Class

FWIW: For What It's Worth

GA: Gate Agent

Hublet, The: Cleveland Hopkins International Airport. Cleveland is known to be the smallest of the three domestic hubs behind IAH and EWR. The term "hublet" has been in popular use on FT since Do IV, when it was used in jest to describe CLE by CO's EWR station manager during a panel discussion.

IDB: Involuntary Denied Boarding (Compensation). This occurs when in an “oversold” situation when not enough passengers give up their seats and therefore must deny boarding to a passenger. Please note, if one is IDB’d, depending up the country where the flight is leaving from, there are certain requirements the airline must meet. More information can be found here, among other places.

IFE: In-Flight Entertainment

IIRC: If I Recall Correctly

JungleJet/Kenjet: Refers to the ERJ135's and 145's

Mainline: implies the Continental flight was/is/will be operated by a 737/757/767/777 aircraft. (787 soon!)

MX: Maintenance or Mechanical

Nonepass: Slang term for OnePass referring to the difficulty in redeeming awards

OLCI: Online check-in

OPSC: OnePass Service Center

PC: Presidents Club

PNR: Technically this means Passenger Name Record however most people associate "PNR" with the term Confirmation Number – a 6 digit alpha–numerical sequence which is unique to one's reservation.

RDM: Redeemable Miles

Rule 240: Refers to Rule 240 in The Contract of Carriage; the rule governs Flight Delays, Cancellations and Aircraft Changes. This reference is a vestige of the days when the Feds regulated the airlines and there really was a Rule 240. These days there isn't one, but most legacy carriers have rules in place that mimic in some way what the old Rule 240 was. In the case of Continental the rule is actually Rule 25 in their CoC.

Standard Reward: A OnePass reward booked at the Standard Level.

TPAC: Trans–Pacific Flight

TATL: Trans–Atlantic Flight

VDB: Voluntary Denied Boarding (Compensation). This occurs when Continental (or any airline really) are in an “oversold” situation and a passenger voluntary gives up his or her seat.

WX: Weather

Y: Can either refer to economy or a full fare ticket (click here for more information on Continental’s Fare Structure)

YMMV: Your Mileage May Vary (means that what was true for one person may not necessarily hold true for you)