English Reference
preposition · adverb

besides

prep. · adv.
US /ˌbiˈsaɪdz/ UK /bɪsˈaɪdz/ be·sides

  1. 01 B1 Intermediate

    prep.in addition to something; as well as.

    prep.in addition to or as well as something else. Often used to introduce a list of items or people that are being included in a statement.

    Simple

    Besides the salad, we ordered two large pizzas for the group.

    In context

    Besides the primary funding from the government, the research project received several private grants from international environmental organisations.

    Pitfall
    Beside my parents, my brother also came. Besides my parents, my brother also came.

    Use 'besides' for 'in addition to'. 'Beside' (without the 's') means 'next to'.

    plusas well as
  2. 02 B1 Intermediate

    prep.other than or except for.

    prep.other than; used to indicate an exception or the only remaining option in a set.

    Simple

    There was no one in the office besides the security guard.

    In context

    The witness claimed she saw no one else at the scene besides the defendant, though the lighting was admittedly poor.

  3. 03 B1 Intermediate Informal

    adv.you use this to add an extra, often more important, reason for something.

    adv.used as a conjunctive adverb to introduce an additional, often more persuasive or conclusive, point or reason.

    Simple

    I don't want to go to the party; besides, I have too much work.

    In context

    The company cannot afford a new marketing campaign this quarter; besides, our current strategy is still yielding significant growth in the target demographic.

    Usage

    Usually placed at the beginning of a sentence or clause to add a final point.

  4. 04 B2 Upper Intermediate

    adv.in other ways or in addition to what has been mentioned.

    adv.otherwise; in addition to what has already been stated or considered.

    Simple

    She is a bit shy, but besides that, she is a great leader.

    In context

    The engine has a minor oil leak, but besides that, the vehicle is in excellent mechanical condition for its age.

Don't confuse

besides vs beside — Beside indicates physical proximity, while besides introduces an additional point or item.

Besides Waltz and Hegseth, the group also included the vice-president, JD Vance, and the CIA director, John Ratcliffe.

The Guardian· 17 Aug 2026

Besides costs, some officials worried about technical problems.

The Conversation· 12 Aug 2026

From Middle English bisides (also bisiden), extension of biside, equivalent to beside + -s (adverbial suffix).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Middle English bisides
Level B2 · Upper Intermediate
Frequency Common
Updated