How do you interpret the score?

[CPSuperstore]

The .hypotheses method of a translation model returns both the translation, and the score.

I was wondering what score is, and how to interpret it (ex, is a higher score better? Is the score bound to a specific range?).

The code I am using for this is as follows (Source: https://skeptric.com/python-offline-translation/)

import argostranslate.translate
from argostranslate import translate


def get_argos_model(source, target):
    lang = f'{source} -> {target}'
    source_lang = [model for model in translate.get_installed_languages() if lang in map(repr, model.translations_from)]
    target_lang = [model for model in translate.get_installed_languages() if lang in map(repr, model.translations_to)]

    return source_lang[0].get_translation(target_lang[0])


model = get_argos_model('English', 'French')

hypo = model.hypotheses("Hello world")
print(hypo)

Output:

[('Bonjour le monde', -2.5760035514831543), ('Bonjour monde', -3.376818895339966), ('Bonjour à tous', -3.440446138381958), ('Bonjour à tous.', -4.031052112579346)]

Thanks in advance