Atc is likely misspelled.

Atc has no English definition.

As an acronym OLDI is

on-Line Data Interchange: A Eurocontrol standard used in ATC systems in order to exchange information about flights crossing the border between the two ATC units. The messages described by this standard use ICAO subfields.

As an initialism ICAO

is international Civil Aviation Organization.

As an acronym OLDI is

on-Line Data Interchange: A Eurocontrol standard used in ATC systems in order to exchange information about flights crossing the border between the two ATC units. The messages described by this standard use ICAO subfields.

Sideling is a related term of sidling.

Sideling is a alternative form of sidling.

As adjectives the difference between sidling and sideling

is that sidling is an alternative spelling of lang=en while sideling is directed toward one side.

As adverbs the difference between sidling and sideling

is that sidling is an alternative spelling of lang=en while sideling is in a sidelong direction.

As a verb sidling

is present participle of lang=en.

As a noun sidling

is the motion of one who sidles.

As adjectives the difference between directed and sideling

is that directed is in a manner emphasizing one's point of view while sideling is directed toward one side.

As a verb directed

is (direct).

As an adverb sideling is

in a sidelong direction.

As adjectives the difference between toward and sideling

is that toward is (obsolete) future; to come while sideling is directed toward one side.

As a preposition toward

is in the direction of.

As an adverb sideling is

in a sidelong direction.

As adjectives the difference between side and sideling

is that side is being on the left or right, or toward the left or right; lateral while sideling is directed toward one side.

As adverbs the difference between side and sideling

is that side is widely; wide; far while sideling is in a sidelong direction.

As a noun side

is a bounding straight edge of a two-dimensional shape.

As a verb side

is to ally oneself, be in an alliance, usually with "with" or rarely "in with.

As a proper noun Side

is an ancient city on a small peninsula on the Mediterranean coast of Anatolia, settled by Greeks from Cyme.

As a noun inclination

is a physical tilt or bend.

As an adjective sideling is

directed toward one side.

As an adverb sideling is

in a sidelong direction.

As a proper noun side

is an ancient city on a small peninsula on the mediterranean coast of anatolia, settled by greeks from cyme.

As an adjective sidewards is

toward a side.

As an adverb sidewards is

toward a side.

Sideling is a related term of sidewards.

As adjectives the difference between sideling and sidewards

is that sideling is directed toward one side while sidewards is toward a side.

As adverbs the difference between sideling and sidewards

is that sideling is in a sidelong direction while sidewards is toward a side.

Sidewards is a related term of sidelong.

As adjectives the difference between sidelong and sidewards

is that sidelong is directed to the side; sideways while sidewards is toward a side.

As adverbs the difference between sidelong and sidewards

is that sidelong is towards the side; sideways while sidewards is toward a side.