Step 1: Understanding the word "anticipate."
"Anticipate" means to expect or look forward to something happening, often with a sense of preparation. It can also mean to predict an event before it occurs.
Step 2: Analyzing the options.
- Contemplate means to think deeply or consider something carefully, but it is not the same as anticipating something to happen.
- Assert means to state something firmly or declare it, unrelated to anticipating future events.
- Neglect means to fail to care for something, which is the opposite of anticipating or preparing for something.
- Predict means to foretell something before it happens, which is very similar in meaning to anticipate.
Step 3: Conclusion.
"Predict" is the most similar word in meaning to "anticipate," as both describe the act of expecting or foreseeing an event.
Thus, the correct answer is 4. Predict.
Final Answer:
\[
\boxed{\text{The correct answer is 4. Predict.}}
\]