The Word is:”no”

no

/nəʊ/

determiner

determiner: no

1. not any.
“there is no excuse”

used to indicate that something is quite the opposite of what is being specified.
“it was no easy task persuading her”

  • hardly any.
    “you’ll be back in no time”
  • used in notices or slogans forbidding or rejecting something specified.
    “No Smoking signs”
  • exclamation

    exclamation: no

    1. used to give a negative response.
    “‘Is anything wrong?’ ‘No.’”

    synonyms: no indeed, absolutely not, most certainly not, of course not, under no circumstances,
    by no means, not at all, negative, never, not really, no thanks; nae; informal nope, nah, not on your life, no way;informal no fear, not on your nelly; informal no siree;
    informal naw; archaicnay
    antonyms: yes
  • expressing disagreement or contradiction.
    “‘This is boring.’ ‘No, it’s not!’”
  • expressing agreement with or affirmation of a negative statement.
    “they would never cause a fuss, oh no”
  • expressing shock or disappointment.
    “oh no, look at this!”
  • adverb

    adverb: no

    1. not at all; to no extent.
    “they were no more able to perform the task than I was”
    2. Scottish

    not.

    “I’ll no be a minute”

    noun

    noun: no; plural noun: noes

    1. a negative answer or decision, especially in voting.
    “he was unable to change his automatic yes to a no”

    Source credit: Google