OBP
On-Base Percentage
OGTT
Oral Glucose Tolerance Test
OHS
Occupational Health and Safety
OOO
Out of the Office
OPS
On-Base Plus Slugging
OS
Operating System
OTA
Online Travel Agency
OTC
On-Time Clarity
OWBL
One-way Backlink
P&L
Profit and Loss
PA
Plate Appearance
PA
Postero-anterior
PB
Passed Ball
PBN
Private Blog Network
Portable Document Format
PFP
Pay for Performance
PI
Personal Information
PII
Personal Identifiable Information
PK
Pickoff
PMS
Property Management System
POS
Point of Sale
PPC
Pay Per Click
PRM
Preferred Rate Manager
PTF
Phrasing Through Fourths
PTO
Paid Time Off
PVR
Pulmonary vascular resistance
PWB
Partial weight bearing
QoQ
Quarter-over-Quarter
QS
Quality Score
QSR
Quick Service Restaurant
R
Run
RBI
Runs Batted In
RED
Revenue Enhancement Directive
RevPAR
Revenue Per Available Room
RFP
Request for Proposal
RMS
Revenue Management System
ROS
Run of Show
RTD
Real-Time Data
RW
Relief Win
Rx, ℞
Prescription
SAF
Sustainable Aviation Fuel
SB
Stolen Base
SER
Search Engine Ranking
SERPs
Search Engine Result Pages
SF
Sacrifice Fly
SH
Sacrifice Bunt
SHO
Shutout
SIP
Seasonal Incentive Program
SLA
Service Level Agreement
SLG
Slugging Percentage
SMB
Small-to-Medium Business
SNS
Social Networking Service
SO
Strike Out
STA
Scheduled Time of Arrival
STAT
Immediately
STC
Standard Travel Commission
STD
Sexually transmitted disease
SUBQ
Subcutaneous
Supp.
Suppository
SV
Save
SVR
Systemic vascular resistance
T
Temperature
T1D
Type 1 diabetes
T2D
Type 2 diabetes
T3
Triiodothyronine
Tab.
Tablet
TAT
Turnaround Time
TB
Tuberculosis
Td
Tetanus and diphtheria vaccine
Tdap
Tetanus, diphtheria and acellular pertussis (vaccine)
TDD
Telecommunications device for the deaf
TENS
Transcutaneous electrical nerve stimulation
TF
Tube feeding
TIA
Transient ischemic attack
TIBC
Total iron binding capacity
TID
Three times per day
TLD
Top Level Domain
TM, ™
Trademark
TMC
Travel Management Company
TMJ
Temporomandibular joint
TO
Telephone order
TPG
Tour Price Guarantee
TPN
Total parenteral nutrition
Trach.
Tracheostomy tube
TRH
Thyrotropin-releasing hormone
TSH
Thyroid-stimulating hormone
TTWB
Toe touch weight bearing
U
Unit
U-100
100 units of insulin per mL
UA
Urinalysis
UAC
Unlicensed assistive personnel
UAC
Umbilical artery catheter
UCx
Urine culture
UER
Unearned Run
UGC
User-Generated Content
USP
Unique Selling Proposition
UTI
Urinary tract infection
UVC
Umbilical vein catheter
V7
Dominant Seventh Chord
VAD
Ventricular assist device