Definition

1. Noun:
   • An informal term for a girl or young woman: "gal" is a casual, sometimes old-fashioned or regional word used to refer to a female person.
   • A unit of acceleration: In physics, a "gal" is a unit of measurement for acceleration equal to one centimeter per second squared (cm/s²), used in gravimetry. It is named after the scientist Galileo.
   • A unit of liquid volume: In the US customary system, a "gal" is a common abbreviation for the gallon, a unit of liquid capacity equal to 4 quarts or approximately 3.785 liters.

Usage Examples

• Noun (Informal term for a girl/woman):
  • She's a smart gal.
  • He went to the dance with a nice gal from his class.
• Noun (Unit of acceleration):
  • The local gravitational field was measured at 980 gals.
• Noun (Unit of volume):
  • The car's fuel tank holds 15 gallons (gals).
  • I need to buy a gal of milk.

Advanced Usage

• "gal" as a colloquial address: Often used in a friendly, informal way, though it can be considered dated or regional (e.g., Southern US, rural dialects).
  • Hey there, young gal, can you help me?
• Scientific context: The "gal" is primarily used in geodesy and geophysics to express gravitational acceleration. One thousand gals is a "kilogal" (kGal).

Variants and Related Words

• Gallon (n): The full form of the volume unit, abbreviated as "gal."
• Galileo (n): The Italian scientist after whom the acceleration unit is named.
• Girl (n): A more standard and common synonym for the informal meaning of "gal."

Synonyms

• For the informal meaning: girl, woman, lady, lass, miss.
• For the volume unit: gallon (full form).
• For the acceleration unit: Gal (capitalized in scientific contexts to distinguish it from the informal term).

Related Phrases

• "gal Friday": An informal, dated term for a female assistant, analogous to "girl Friday" (itself a play on "man Friday" from ). This is considered sexist and is rarely used in modern professional contexts.
  • In the old office, she was the boss's gal Friday.

Notes on Usage

• The informal use of "gal" to mean a girl or woman is casual and can be perceived as quaint, old-fashioned, or regionally specific. It is less common in modern, formal English.
• In writing, context is crucial to distinguish between the meanings. The scientific unit is often capitalized ("Gal") to avoid confusion.
• The abbreviation "gal." for gallon is standard in the US for recipes, packaging, and commerce.

Noun

1. alliterative term for girl (or woman)
2. a unit of gravitational acceleration equal to one centimeter per second per second (named after Galileo)
3. United States liquid unit equal to 4 quarts or 3.785 liters