le

IPA/lə/
KK[lə]IPA/lə/

le — abbreviation

1. a written abbreviation for "leading edge" — the front edge of an aircraft wing,

1.abbreviationC1
Definition

a written abbreviation for "leading edge" — the front edge of an aircraft wing, blade, or similar surface that meets the air first; also used to describe the most advanced position in a particular field of technology or research.

Example

The LE of the new wing design reduces drag by more than fifteen percent, lowering the aircraft's fuel use.

"LE of the ... wing" — written abbreviation in technical description

Engineers coated the LE of each turbine blade with a ceramic layer to protect it from extreme heat.

"LE of each turbine blade" — part of a mechanical component

Common collocations
  • LE of the wing
  • LE of the blade
  • LE design
  • LE technology
  • at the LE of
Synonyms
  • vanguard

    more formal, used for social or artistic movements rather than physical edges

  • forefront

    similar scope but less technical; used for research, social change

  • cutting edge

    more common in general writing about innovation; similar register

Antonyms
  • trailing edge

    the rear edge of an airfoil; also used figuratively for 'behind the times'

Usage Note

Common in aviation engineering reports and technical marketing writing. When used figuratively ("at the LE of"), it often appears without a preceding article.

Common Mistakes

The LE of fashion this year is oversized coats.
The leading edge of fashion this year is oversized coats.
In non-technical contexts, use the full phrase 'leading edge' rather than the abbreviation.
The plane's LE wing was damaged.
The LE of the wing was damaged.
'LE' is a noun, not an adjective; use 'of the wing' to show possession.

le — abbreviation

1. a written abbreviation for "lupus erythematosus" — a chronic autoimmune disease

1.abbreviationC2
Definition

a written abbreviation for "lupus erythematosus" — a chronic autoimmune disease in which the body's immune system attacks its own tissues, causing inflammation and damage to the skin, joints, kidneys, and other organs.

Example

The patient was diagnosed with systemic LE after a series of blood tests.

"diagnosed with systemic LE" — clinical diagnosis context

Dr. Okafor reviewed the LE panel results before adjusting the treatment plan.

"LE panel" — standard medical test battery

Common collocations
  • systemic LE
  • LE patient
  • LE diagnosis
  • LE panel
  • cutaneous LE
Synonyms
  • lupus

    the common name; broader, can refer to discoid or systemic forms

Usage Note

Almost exclusively used in medical charts, journal articles, and clinical correspondence. When speaking to patients, doctors typically use the full name "lupus" or "lupus erythematosus" rather than the abbreviation.

Common Mistakes

She has LE.' (in casual conversation)
She has lupus.
Outside medical records, use the common name 'lupus' rather than the abbreviation.
LE is spread through coughing.
LE is an autoimmune disease, not an infection.
LE cannot be transmitted between people.

Word family

  • leading edge
    nounB2
  • lupus erythematosus
    nounC2
  • lupus
    nounC1

Synonym discussion

Sense: abbreviation/1

All four terms describe a position at the front of development, but they differ in domain and formality. "Leading edge" (and its abbreviation LE) is the most technical — it literally refers to the front of an airfoil and figuratively to advanced technology. "Cutting edge" is the most common in general writing about innovation and has a slightly more dramatic tone. "Forefront" is broader, used for social movements and research fields as well as technology. "Vanguard" carries the strongest association with progressive ideas and cultural change, and is the most formal of the four. In aviation or engineering writing, use "leading edge" or its abbreviation LE; in a press release about new software, "cutting edge" sounds natural; in an academic essay about social reform, "vanguard" is more appropriate.

leading edgevanguard ↗forefront ↗cutting edge

Common collocations

Nouns

Phrases

  • at the LE of
  • LE of the wing
  • systemic LE

Prepositions

Etymology

EnglishLatin

"LE" is a standard English alphabetic abbreviation formed by taking the initial letters of "leading edge" (aerodynamics, early 20th century) and "lupus erythematosus" (medical Latin, early 20th century). The two abbreviations are historically unrelated but share the same written form. "Leading edge" entered aviation terminology around the 1910s, while "lupus erythematosus" was first abbreviated in medical journals in the 1930s.