Find the odd one out by spotting the anagram theme: CIRE, NAIR, LOUDSC, RNUTHDE.

Introduction / Context:
In anagram-based odd-one-out questions, three items often hide a common semantic theme once their letters are re-arranged, while the fourth belongs to a completely different category. The key is to unscramble each option into a familiar English word and then compare categories.

Given Data / Assumptions:

• CIRE → (rearranged) RICE
• NAIR → RAIN
• LOUDSC → CLOUDS
• RNUTHDE → THUNDER

Concept / Approach:
Unscramble each option. NAIR, LOUDSC, and RNUTHDE resolve neatly to weather phenomena: rain, clouds, and thunder. By contrast, CIRE resolves to RICE, which is a cereal crop (food grain), not a weather phenomenon. Thus three items share a coherent meteorological theme and one does not, providing a decisive separation for the odd one out.

Step-by-Step Solution:
1) Attempt straightforward anagrams for each string.2) Categorise the resolved words (weather vs non-weather).3) Select the non-weather term (RICE) corresponding to CIRE as the odd one.

Verification / Alternative check:
Even if you try broader “nature” categories, RICE (a cultivated crop) still differs from weather events/conditions. The meteorological specificity groups rain, clouds, and thunder together tightly.

Why Other Options Are Wrong:
NAIR, LOUDSC, RNUTHDE each decode to classic weather terms (RAIN, CLOUDS, THUNDER); they are consistent among themselves.

Common Pitfalls:
Stopping after discovering that all words are “about nature.” Precision matters—“weather” is the shared sub-category.

Final Answer:
CIRE