main meaning
EN
[meɪn] [-eɪn] 
US WMain
- Main may refer to:
FR main 
- NounPLmainsSUF-ain
- (obsolete, except in might and main) Strength; power; force; violent effort.
- That which is chief or principal; the chief or main portion; the gross; the bulk; the greater part.
- (now archaic, US dialectal) The mainland.
- (now poetic) The high seas.
- A large pipe or cable providing utility service to a building or area, such as water main or electric main.
- (nautical) The mainsail.
- A hand or match in a game of dice.
- A stake played for at dice.
- The largest throw in a match at dice; a throw at dice within given limits, as in the game of hazard.
- A match at cockfighting.
- A main-hamper, or fruit basket.
- (obsolete, except in might and main) Strength; power; force; violent effort.
- AdjectiveCOMmore mainSUPmost main
- (obsolete) Great in size or degree; vast; strong; powerful; important.
- Principal; prime; chief; leading; of chief or principal importance.
- Principal or chief in size or extent; largest; consisting of the largest part; most important by reason or size or strength.
- main timbers; main branch of a river; main body of an army
- Full; undivided; sheer (of strength, force etc.).
- (nautical) Belonging to or connected with the principal mast in a vessel.
- (dialectal) Big; angry.
- (obsolete) Great in size or degree; vast; strong; powerful; important.
- AdverbCOMmore mainSUPmost main
- More Examples
- Used in the Middle of Sentence
- After about a mile, we pulled off the main road onto a dirt track.
- One squamous cell carcinoma of the lower trachea with involvement of right main bronchus and invasion extraluminally, its longitudinal involvement was 53.7 mm (Fig 1).
- The main components of the diterpenic fraction are acids indicating a resin from a plant belonging to the conifer family.
- Used in the Beginning of Sentence
- Main causes are trauma, infection, atherosclerosis or iatrogenicities [ 2 , 3 ].
- Main ingredients were ground (below 250 μm) in a micropulverizer hammer mill (SH1; Hosokawa Micron, B.V., Doetinchem, The Netherlands).
- Main minerals detected were Na-rich plagioclase (possibly albite), calcite/aragonite, phyllosilicates and, occasionally, zircon, namely subangular to euedrally shaped (S7C Fig ).
- Used in the Ending of Sentence
- … the lion is in most gentleness and nobility, when his neck and shoulders be heled with hair and main.
- Used in the Middle of Sentence
Definition of main in English Dictionary
- Part-of-Speech Hierarchy
- Adjectives
- Uncomparable adjectives
- Uncomparable adjectives
- Adverbs
- Nouns
- Countable nouns
- Countable nouns
- Adjectives
- fr main
- en maintain
- en maintained
- en mainly
- en maintaining
Source: Wiktionary
Grammatically, this word "main" is an adjective, more specifically, an uncomparable adjective. It's also an adverb. It's also a noun, more specifically, a countable noun.