Ellie’s tattoo could symbolize a variety of things depending on the design. Generally, tattoos serve as representations of a person’s beliefs, values, relationships, and memories. If the tattoo is a meaningful quote, it could represent something Ellie considers important or an event that shaped her life. If the tattoo is a symbol, such as a bird, it could represent freedom, beauty, courage, or ambition. Ellie’s tattoo is likely personal to her and likely serves as a reminder to stay true to her values, memories, and relationships.