If the word is used as a noun, notice if it is a singular, plural or proper noun. Analyze how the word is used. Notice the other words that are used with it as well. The more examples that you have of its use in context, the more certain you can be of its definition. You might even discover that a word has different meanings in different contexts.
Some words are verbs in one context but nouns in another.
The English word saw is a well-known example of this. A study in Strong's Concordance Our study can begin with Strong's Exhaustive Concordance. Those who own other concordances or computer Bible programs can apply the same principles I'm giving here with only slight modifications for your situation. Some resources will make the job easier than Strong's does. But because Strong's Concordance is a widely used Bible-study tool, I'm confining my comments to that work.