The phrase "falling in line" can be used in various contexts, from adhering to rules to following a leader. Some synonyms for this expression include "getting in sync," "lining up," "falling in step," "following suit," "falling into place," "conforming," "submitting," "obeying," "complying," and "yielding." Each of these expressions describes the act of aligning oneself with a particular group or standard. Whether you are falling in line with a company's vision or waiting in line at the grocery store, these synonyms can help add variety to your language and express your ideas more precisely.