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Unless vs Thereby - What's the difference?

unless | thereby |

As a conjunction unless

is except on a specified condition; if not.

As an adverb thereby is

(formal) by it, by that.

unless

English

Alternative forms

* unlesse (obsolete)

Conjunction

(English Conjunctions)
  • Except on a specified condition; if not.
    • I’m leaving unless I get a pay rise (AmE: raise).
  • *
  • * 1839 , Denison Olmsted, A Compendium of Astronomy Page 95
    • Secondly, When a body is once in motion it will continue to move forever, unless something stops it. When a ball is struck on the surface of the earth, the friction of the earth and the resistance of the air soon stop its motion.

    Antonyms

    * (except on a condition) if

    Derived terms

    * precisely unless * unlesss * unless and until, until and unless

    Statistics

    *

    thereby

    English

    Adverb

  • (formal) By it, by that.
  • * 1729 , :
    • Thirdly'', Whereas the Maintainance of an hundred thousand Children, from two Years old, and upwards, cannot be computed at less than Ten Shillings a piece ''per Annum'', the Nation's Stock will be thereby encreased fifty thousand pounds ''per Annum'', besides the profit of a new Dish, introduced to the Tables of all ''Gentlemen of Fortune in the Kingdom, who have any refinement in Taste, and the Money will circulate among our selves, the Goods being entirely of our own Growth and Manufacture.
  • * 1787 , :
    • This Constitution, and the Laws of the United States which shall be made in Pursuance thereof; and all Treaties made, or which shall be made, under the Authority of the United States, shall be the supreme Law of the Land; and the Judges in every State shall be bound thereby , any Thing in the Constitution or Laws of any State to the Contrary notwithstanding.

    See also

    * English pronominal adverbs