Pari-mukha

pari-mukha = in-front

1. literal context, in vinaya, refers to spatial location in front of person, such as facial or chest hair.
* Mukha = (anatomical) mouth, entrance, opening. Examples: mouth of a river, opening entrance of a bag of grains.
2. figurative context in sitting meditation:
* pari-mukha = main priority.
* what is 'in-front' of you is the 'main priority'.
* tackle head on what's 'in-front' of you.
* move that task to the front of the line.

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pari-mukha in idiomatic sense similar to these English expressions

These examples have nothing to do with physical body part or its spatial location to the "front" (mukha), unless by coincidence.
"con-front the facts."
"face your fears."
"face the facts. face reality."
"the answer is right in front of you."
"focus on the task at hand" - has nothing to do with physical spatial focus of hand, unless by coincidence, such as 'shuffle a deck of cards.'
"get your head in the game." (means: you lack samādhi, focus, undistractible-ludicity)
"the boy behaving badly made his mom lose face." (means: mom embarrassed, pride hurt)
"keep your chin up." (means: don't lose courage)
"hold your head high." (means: be proud, you did your best)
"It's no skin off my nose if you don' take my advice." (means: no harm to me if you ignore me).

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pari-mukhaṃ satiṃ upaṭṭhapetvā

✅Make sati establishment your "main priority".
⛔It does not mean focus on physical spatial area around-your-mouth, as late Theravada wrongly interprets this in 16🌬️😤‍ breath meditation context.