From Middle English synnere, equivalent to sin +‎ -er. Compare Saterland Frisian Säänder (“sinner”), West Frisian sûnder (“sinner”), Dutch zondaar (“sinner”), German Low German Sünder, Sünner (“sinner”), German Sünder (“sinner”), Danish synder (“sinner”), Swedish syndare (“sinner”), Icelandic syndari (“sinner”).

• (non-rhotic)
  • (Received Pronunciation) IPA^(key): /ˈsɪnəː/, [ˈsɪnəː]
• (rhotic)
  • (General American, Standard Canadian) IPA^(key): /ˈsɪnɚ/, [ˈsɪnɚ] ~ [ˈsɪnɹ̩]

    • Audio (US):

      (file)

• Rhymes: -ɪnə(ɹ)
• Hyphenation: sin‧ner
• Homophones: center, centre, sender, cinder (pin–pen merger, nt-flapping)

sinner (plural sinners)

1. A person who sins or has sinned.

   Synonyms: criminal, evildoer, offender

   Hyponym: (Islam) fasiq

   1. A person who, by one particular action, has sinned.
      • 2016, Janet Edmonds, The Bible Doesn’t Say That Homosexuality is a Sin:

        Some Christians believe the Bible tells us that homosexuals are sinners. The current trend of increased acceptance of the lesbian, gay, bisexual, transgender and queer (LGBTQ) community is distressing to these Christians who sincerely want to follow the Bible.

   2. (Christianity, doctrinal) An unregenerate person.
2. (figuratively, by extension) A person with negative qualities; one who does bad things.
   1. One who lives a hedonist life; a self-indulgent person.

      Are you a sinner or a saint?

• inners, niners, renins

From Latin signō, signāre, from signum (“mark, sign”).

sinner

1. (Jersey) to sign