Terminology and Abbreviations

This post will be edited and grow as time goes on. If it's missing something that you think needs added please leave a comment.

Common Abbreviations:

ACE - American Coaster Enthusiasts (coaster club)

AF1 - Aeire Force One (at Fun Spot Atlanta)

ARB - Anti-Rollback Device

AT - Alton Towers

B&M - Bolliger and Mabillard (manufacturer)

BGW - Busch Gardens Williamsburg

BGT - Busch Garden Tampa

CF - Cedar Fair (corporate)

CP - Cedar Point

CW - Canada's Wonderland (sometimes Carowinds)

DW - Dollywood

ERT - Exclusive Ride Time

Gs - Forces (multiple of normal weight)

GP - General Public

HP - Hersheypark

IoA - Universal's Islands of Adventure

KBF - Knott's Berry Farm

KD - Kings Dominion

KI - Kings Island

KK - Kentucky Kingdom

KW - Kennywood

LIM - Linear Induction Motor (a type of launch, mostly replaced by LSM)

LoCoSuMo - Lost Coaster of Superstition Mountain (at Indian Beach)

LRotN - Last Ride of the Night (sometimes followed by o for on followed by a ride)

LSM - Linear Synchronous Motor (a type of launch, newer version of LIM)

MCBR - Mid Course Brake Run

MF - Millenium Force (at Cedar Point)

OTSR - Over the Shoulder Restraint

SBNO - Standing But Not Operating

SDC - Silver Dollar City

SEAS - Sea World (corporate, encompassing Busch Gardens as well)

SF - Six Flags

SFA - Six Flags America

SFDK - Six Flags Discovery Kingdom

SFDL - Six Flags Darien Lake

SFFC - Six Flags Frontier City (rarely used, sometimes without SF)

SFFT - Six Flags Fiesta Texas

SFGAd - Six Flags Great Adventure

SFGAm - Six Flags Great America

SFGE - Six Flags Great Escape

SFMM - Six Flags Magic Mountain

SFNE - Six Flags New England

SFoG - Six Flags Over Georgia

SFoT - Six Flags Over Texas

SFSL - Six Flags St. Louis

SteVe - Steel Vengeance (at Cedar Point)

SWO - Sea World Orlando (rarely can mean Sea World Ohio, defunct)

SWSA - Sea World San Antonio

SWSD - Sea World San Diego

TTD - Top Thrill Dragster

USF - Universal Studios Florida

USH - Universal Studios Hollywood

UOR - Universal Orlando Resort

VC - VelociCoaster

WDW - Walt Disney World (Florida)

Terminology:

Block Brake - A brake that separates block zones, sometimes inactive unless needed

Block Zone - A section of track that only a single ride vehicle is allowed to be in at a time. Safety system to avoid collisions.

Giga - A coaster with a drop between 300 and 399ft¹

Hyper - A coaster with a drop between 200 and 299ft¹

Mega - A coaster with a drop between 100 and 199ft¹

Strata - A coaster with a drop between 400 and 499ft¹

Trim Brake - (Sometimes just "trim") A brake system that is designed to slow trains to a specified speed. Often inactive if the train is already going less than that speed.

¹ For Hyper, Giga, etc, this generally excludes shuttle coasters that may not traverse the entire drop height. Additionally, if a coaster height is in the range and the drop is very close to the same an exception is made (ie. Magnum XL-200). Opinions on this can vary.