How accurate is Ilocano to Tagalog translation?

We ran all 153 translatable entries in our Ilocano↔Tagalog phrasebook through the same engine this site uses, and compared each result against the human-checked Tagalog. Categories are our own; the comparison ignores punctuation and casing.

Every other Ilocano translation site we looked at asserts that its results are accurate. None publishes a number. This is ours, and the method is described in full on the methodology page so you can judge whether it is a fair test.

Phrases tested

153

Exact match

74

Close

13

Wrong or partial

66

Translating out of Ilocano works considerably better than translating into it. Across the same 153 phrases, Ilocano as the source scored 56.9% and 60.1%; Ilocano as the target scored 46.4% and 48.4% — a gap of roughly eleven points.

This is what a low-resource language looks like from the inside. Recognising Ilocano and mapping it onto a well-resourced language is the easier half of the problem. Producing correct Ilocano — choosing the right affix, the right linker, the right register — needs far more training data than exists, so the engine falls back on passing words through unchanged or borrowing a form from the source language.

If you need Ilocano in the output and it matters, have a speaker check it. The direction you are translating changes how much you can trust the result, and every tool we know of presents both directions as equally reliable.

Reliability is not evenly spread. Concrete vocabulary does well; anything involving people, relationships or politeness does badly.

The most damaging failure, because nothing signals it went wrong. When the engine does not recognise an Ilocano word it echoes the input. Ten of our test phrases came back identical to what went in despite having a perfectly ordinary Tagalog equivalent.

If the output looks like the input, it almost certainly failed. A further 17 words in our set were identical in both languages legitimately — 'lima', 'pito', 'itlog', 'kape' — so identical output is not proof of failure on its own.

The engine has little direct Ilocano↔Tagalog training data, so it pivots through English. Where the English word is ambiguous, the wrong sense gets carried into Tagalog.

Single words are where this bites hardest. Give the engine a full sentence and the surrounding context often rescues the right sense.

Short greetings sometimes come back with filler the original did not contain.

Read the output for length. If it is noticeably longer than the source, something was invented.

Kinship and courtesy terms come back in a different register than the source, which matters in a language where address terms carry respect.

Have output checked by a speaker before using it in anything formal or public.

• Legal, medical or financial documents.
• Anything going into print or public signage.
• Names, addresses and place names — these are passed through or mangled unpredictably.
• Regional Ilocano vocabulary outside the Ilocos Norte/Sur standard.
• Anything where formality or respect matters, given the register drift above.

For any of those, use a professional translator. A free tool that is right about four times in seven is a helpful draft, not a substitute for one.

• Give it a full sentence rather than a single word. Most of the worst failures above are isolated words, where there is no context to disambiguate.
• Compare the output against our checked phrasebook for anything common.
• Watch for output identical to your input, and for output noticeably longer than your input. Both are reliable signals that something went wrong.
• Use standard Ilocano rather than regional vocabulary where you can — the engine has effectively no coverage outside the Ilocos Norte and Sur varieties.