Binding describes an agreement with legal force, and it has one fixed preposition that trips up almost everyone who learned "obligatory" or "mandatory" first: "binding" pairs with "on" or "upon," never "to" or "for." Get that one preposition right, and the rest of the collocation set is short and stable.
The most natural pairings are legally binding, non-binding [agreement/MOU], binding on [the parties/all staff], binding upon [the signees], and strictly binding.
Legal-force register: describing the document
"Binding" and its opposite, "non-binding," describe the enforceability of a document -- a contract, an agreement, a memorandum of understanding.
"A final signed employment contract is legally binding, while the memorandum of understanding is non-binding, so it does not create a legal obligation."
That contrast -- binding vs. non-binding -- is the core distinction the word exists to draw: does this document impose a legal obligation, or is it advisory?
Obligation register: naming who it binds
When the sentence names who has to follow the terms, "binding" takes "on" or "upon" before the party.
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The pattern holds regardless of who the party is -- staff, managers, both signatories, or "all parties" -- the preposition stays "on" (or the more formal "upon").
What doesn't collocate
The most common mistake is swapping in "to," "for," or "with" by analogy with other obligation words: "binding to all regional managers," "binding with the client," and "binding with the board" are all non-standard -- each should be "binding on." A second, more conceptual mistake is misplacing what's actually binding: it's the contract or agreement itself that's binding, not the connection to it, so "binding to the contract" doesn't work -- people are bound by or on a contract, and the contract is the thing described as binding. A third slip is the verb form: "legally binded" isn't standard; "binding" is the adjective used in this context, and the verb's past participle is "bound."
Practice scenarios
Practice using binding in situations like:
- distinguishing a legally binding contract from a non-binding agreement or MOU
- naming exactly who a binding agreement applies to, with "on" or "upon"
- catching "to," "for," or "with" before they attach to binding by mistake
Useful practice phrases:
- "This agreement is legally binding on [party]."
- "The MOU is non-binding, so it doesn't create a legal obligation."
- "Is the verbal agreement binding on the client under [jurisdiction]'s law?"
Binding only takes one preposition when it names who's obligated -- "on," never "to" or "with."
Keep the document and the party straight, and the sentence reads like it was drafted by a lawyer, not translated by one.
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