When it comes to expressing the act of "bear in thought," there are a variety of synonyms that can be used. Some of the most common options include contemplate, ponder, meditate, consider, mull over, reflect on, and ruminate. These words are often used to convey the idea of carefully thinking about something, often in a deep or introspective way. Depending on the context, other possible synonyms might include examine, scrutinize, analyze, or assess. Ultimately, the key is to choose a word that accurately reflects the specific type of thinking or reflection that is taking place, whether it's a quick consideration or a more prolonged and in-depth analysis.