0th

Precedes the initial

Zeroth, indicating position zero in a sequence.

Used in mathematics, computer science, and technical contexts where counting begins at zero rather than one: the 0th element of an array, the 0th law of thermodynamics.

Pronounced "zeroth."

ordinal

first

Position number one

beginning · original · foundational · baseline · index · position · element · term · entry · rank

mathematical

dimension

Measurable extent or scope

  • indexAlphabetical guide to contents
  • arrayOrdered collection or display
  • elementBasic substance or factor

sequence · term · series · power · exponent · coefficient · polynomial · derivative · iteration · recursion

programming

index

Alphabetical guide to contents

offset · list · string · character · pointer · memory · address · buffer · iteration · loop

scientific

ground

Solid surface underfoot

mode · harmonic · order · approximation · baseline · reference · fundamental · quantum · vibration · frequency

Opposites
ordinal position

0thlast

Final in sequence

final · nth · ultimate · terminal · penultimate

counting convention

0th1st

Earliest in order

first · primary · initial · foremost

Family

zeroth

Familiarity
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Profile
Used worldwide · Timeless · Abstract · Rated G