Look up Definition 1 of 4Pro Tip 1/3Digital Age The phrase often involves using technology, like a search engine. I will look up the restaurant's reviews on my phone. Pro Tip 2/3Homework Help Essential for academic research to find credible sources or facts. For your essay, you'll need to look up historical dates. Pro Tip 3/3Precision Used when details are important and guessing is not an option. I need to look up the exact dosage for this medicine.