Synonyms of the word

null

• n. A non-existent or empty value or set of values.
• n. Zero quantity of expressions; nothing.
• n. Something that has no force or meaning.
• n. (computing) the ASCII or Unicode character (␀), represented by a zero value, that indicates no character…
• n. (computing) the attribute of an entity that has no valid value.
• n. One of the beads in nulled work.
• n. (statistics) null hypothesis.
• adj. Having no validity, "null and void".
• adj. insignificant.
• adj. absent or non-existent.
• adj. (mathematics) of the null set.
• adj. (mathematics) of or comprising a value of precisely zero.
• adj. (genetics, of a mutation) causing a complete loss of gene function, amorphic.
• v. (transitive) to nullify; to annul.

aught

• pron. anything whatever, any part.
• n. whit, the smallest part, iota.
• n. (archaic) zero.
• n. The digit zero as the decade in years. For example, aught-nine for 1909 or 2009.
• adv. (archaic) At all, in any degree, in any respect.
• n. (regional) Estimation.
• n. (regional) Of importance or consequence (in the phrase "of aught").
• n. (regional, rare, obsolete) Esteem, respect.
• n. Property; possession.
• n. Duty; place; office.
• v. to own, possess.
• v. to owe, be obliged or obligated to.
• adj. possessed of.
• num. Obsolete or dialectal form of eight.

cipher

• n. A numeric character.
• n. Any text character.
• n. A combination or interweaving of letters, as the initials of a name; a device; a monogram.
• n. A method of transforming a text in order to conceal its meaning.
• n. (cryptography) A cryptographic system using an algorithm that converts letters or sequences of bits into…
• n. Ciphertext; a message concealed via a cipher.
• n. A grouping of three digits in a number, especially when delimited by commas or periods.
• n. A design of interlacing initials: a decorative design consisting of a set of interlaced initials.
• n. (music) A fault in an organ valve which causes a pipe to sound continuously without the key having been…
• n. A hip-hop jam session.
• n. The path (usually circular) shared cannabis takes through a group, an occasion of cannabis smoking.
• n. Someone or something of no importance.
• n. (dated) Zero.
• v. (regional, dated) To calculate.

cypher

• n. Alternative spelling of cipher.
• v. Alternative spelling of cipher.

invalid

• adj. Not valid; not true, correct, acceptable or appropriate.
• n. (dated, sometimes offensive) Any person with a disability or illness.
• n. (dated, sometimes offensive) A person who is confined to home or bed because of illness, disability or…
• n. (archaic) A disabled member of the armed forces; one unfit for active duty due to injury.
• adj. Intended for use by an invalid.
• v. (Britain) To exempt from duty because of injury or ill health.

nada

• pron. (informal, colloquial) nothing.

naught

• pron. (archaic) Nothing.
• n. (archaic) Nothingness.
• n. (chiefly US, old-fashioned) Alternative spelling of nought.
• num. (chiefly US, old-fashioned) Alternative spelling of nought.

nil

• n. Nothing; zero.

nix

• n. (colloquial): nothing.
• v. To make something become nothing; to reject or cancel.
• v. To destroy or eradicate.
• n. A treacherous water-spirit; a nixie.

nothing

• pron. Not any thing; no thing.
• pron. An absence of anything, including empty space, brightness, darkness, matter, or a vacuum.
• n. Something trifling, or of no consequence or importance.
• n. A trivial remark (especially in the term sweet nothings).
• n. A nobody (insignificant person).
• adv. (archaic) Not at all; in no way.

void

• adj. Containing nothing; empty; vacant; not occupied; not filled.
• adj. Having no incumbent; unoccupied; said of offices etc.
• adj. Being without; destitute; devoid.
• adj. Not producing any effect; ineffectual; vain.
• adj. Of no legal force or effect, incapable of confirmation or ratification.
• adj. Containing no immaterial quality; destitute of mind or soul.
• adj. (computing, programming, of a function or method) That does not return a value.
• n. An empty space; a vacuum.
• n. (astronomy) An extended region of space containing no galaxies.
• n. (materials science) A collection of adjacent vacancies inside a crystal lattice.
• n. (fluid mechanics) A pocket of vapour inside a fluid flow, created by cavitation.
• v. (transitive) To make invalid or worthless.
• v. (transitive, medicine) To empty.
• v. To throw or send out; to evacuate; to emit; to discharge.
• v. (intransitive, obsolete) To withdraw, depart.
• v. (transitive, obsolete) To remove the contents of; to make or leave vacant or empty; to quit; to leave.
• n. (now rare, historical) A voidee.

zero

• num. (cardinal) The cardinal number occurring before one and that denotes no quantity or amount at all, represented…
• n. The numeric symbol that represents the cardinal number zero.
• n. The digit 0 in the decimal, binary, and all other base numbering systems.
• n. (informal, uncountable) Nothing, or none.
• n. The value of a magnitude corresponding to the cardinal number zero.
• n. The point on a scale at which numbering or measurement originates.
• n. (mathematics) A value of the independent variables of a function, for which the function is equal to zero.
• n. (mathematics, algebra) The additive identity element of a monoid or greater algebraic structure, particularly…
• n. (slang) A person of little or no importance.
• n. (military) A Mitsubishi A6M Zero, a long range fighter aircraft operated by the Japanese Navy Air Service…
• n. A setting of calibrated instruments such as a firearm.
• n. (finance) A security which has a zero coupon (paying no periodic interest).
• adj. (informal, used with noun) none.
• adj. (meteorology) Of a cloud ceiling, limiting vision to 50 feet (15 meters) or less.
• adj. (meteorology) Of horizontal visibility, limited to 165 feet (50.3 meters) or less.
• adj. (linguistics) Present at an abstract level, but not realized in the data.
• v. (transitive) To set a measuring instrument to zero; to calibrate instrument scale to valid zero.
• v. (transitive, computing) To change a memory location or range to values of zero; to set a variable in a…
• v. (transitive) To cause or set some value or amount to be zero.
• v. (transitive) To eliminate; to delete; to overwrite with zeros.
• v. (intransitive) To disappear.

zilch

• n. (informal, uncountable) nothing.
• n. (informal, countable) A person who is unimportant or lacks character; a nobody.

zip

• n. The high-pitched sound of a small object moving rapidly through air.
• n. (informal) Energy; vigor; vim.
• n. (Britain, New Zealand) A zip fastener.
• n. (slang) Zero; nothing.
• n. A trip on a zipline.
• n. (computing, informal) A zip file.
• n. (slang) An ounce of marijuana.
• interj. The high-pitched sound of a small object moving rapidly through air.
• v. (transitive) To close with a zip fastener.
• v. (transitive, figuratively) To close as if with a zip fastener.
• v. (transitive, computing) To compress (one or more computer files) into a single and often smaller file,…
• v. (intransitive) (followed by a preposition) To move rapidly (in a specified direction or to a specified…
• v. (intransitive, colloquial) (followed by a preposition) To move in haste (in a specified direction or to…
• v. (transitive) To make (something) move quickly.
• v. To travel on a zipline.
• n. (US) A ZIP code; a US postal code.
• n. (US, by extension) Any postal code, for any country.

zippo

• adj. (slang) None whatsoever.