can someone help me translate "give them nothing" into gaelic for me please? thanks for your help

I'd say "Ná tabhair faic dóibh" would work in most cases.

Could you give us a little more context?

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Ag lorg cómhra as Gaeilge? Bígí linn - http://www.foramnagaeilge.com

Ulster : Ná tabhair a dheath daofa

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Is fearr Gaeilg na Gaeltaċta ná Gaeilg ar biṫ eile
Agus is í Gaeilg Ġaoṫ Doḃair is binne

Sounds like it's supposed to mean "don't give in" "don't give way". (Is this from 300?) If so, maybe Ná géill choíche or Ná druid choíche. In cases where you're speaking to two or more people, géill changes to géilligí and druid to druidigí. The translations mean something along the lines of "Never surrender/give up" and "Never retreat/pull back" respectively".

Wait for more.

I'm asking for my brother, who's currently deployed in Afghanistan...so I can only assume he would prefer a translation that had a feel of fear or intimidation about it. I hope this detail helps!

It sounds as though he might like Ná géill choíche, which can mean "never give in", "never yield", or "never surrender".

BY the way, is your family from Mayo, anywhere near Foxford or Swinford? My grandmother, a McNulty, was born in that area, and lived in New York City after emigrating.

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I'm not a native (or entirely fluent) speaker, so be sure to wait for confirmations/corrections, especially for tattoos.

No, we're from the Boston area. Quick question though, I'm aware that I should wait until confirmation for the translations, but where does this confirmation come from?

A: From the other translators. Once a certain number of possibilities have been offered, people will either agree with one or will start to tweak one until three people have agreed on a particular translation. If the process stalls, just bump the thread to remind people it is incomplete.

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Múinteoir Gaeilge - Irish Teacher
My "specialty" is Connemara Irish, particularly Cois Fhairrge dialect, but I can also speak Ulster and Munster Irish with native-level pronunciation.
Is fearr Gaeilge ḃriste ná Béarla cliste, cinnte, aċ i ḃfad níos fearr aríst í Gaeilge ḃinn ḃeo na nGaeltaċtaí.
Gaeilge Chonnacht (GC), go háraid Gaeilge Chois Fhairrge (GCF), Gaeilic Uladh (GU), Gaelainn na Mumhan (GM), agus Gaeilge an Chaighdeáin Oifigiúil (CO).

I like Gumbi’s version. Since the original English has ‘them’ in it, though, how about ná géill choíche dóibh?

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Not a native speaker.

Always wait for at least three people to agree on a translation, especially if it’s for something permanent.

My translations are usually GU (Ulster Irish), unless CO (Standard Orthography) is requested.

I think Gumbi's Ná géill choíche is more general and fits the context just fine without adding dóibh.

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Múinteoir Gaeilge - Irish Teacher
My "specialty" is Connemara Irish, particularly Cois Fhairrge dialect, but I can also speak Ulster and Munster Irish with native-level pronunciation.
Is fearr Gaeilge ḃriste ná Béarla cliste, cinnte, aċ i ḃfad níos fearr aríst í Gaeilge ḃinn ḃeo na nGaeltaċtaí.
Gaeilge Chonnacht (GC), go háraid Gaeilge Chois Fhairrge (GCF), Gaeilic Uladh (GU), Gaelainn na Mumhan (GM), agus Gaeilge an Chaighdeáin Oifigiúil (CO).