A line | used for

Used For
USA	UF

| control and coordination

Control and Coordination
mil. abbr.	C&C

| of

OF
abbr. IT	Output File; Overflow Flag
abbr. mil.	Objective Force; Opposing Force; Optional Form
abbr. progr. IT	Open File
abbr. sport.	Outfield; Outfielder

| military operations

military operations
avia.	mil operations

It is | usually

usually
abbr.	usu

| along

along
abbr.	alg

recognizable terrain feature extending across | the

THE
abbr. med.	Tetrahydrocortisone E

| sector

SECTOR
abbr.	Space Exploration And Colonization Through Organized Relationships

| or

OR
abbr. med.	Orbicularis Oris

| zone of action | Units

UNITS
abbr. post	Units for mail conversion rates

normally report crossing | PLs

PLS
abbr. med.	Papillon-Lefevre Syndrome

| but

but
abbr. construct.	buttress

| do not

do not
abbr. inf.	don't

| halt

HALT
abbr. IT	Highly Accelerated Life Testing

unless specifically directed