"Out-comer" refers to someone who arrives at a place or situation after others. Some synonyms for this term include newcomer, latecomer, or arrival. Similarly, one can use the terms novice, greenhorn, or rookie to describe someone who is new to a particular endeavor. The term "outsider" can also be used to refer to someone who is not part of a particular group or community. Other synonyms for "out-comer" include interloper, intruder, or trespasser, which imply a sense of intrusion or unwelcome presence. Ultimately, the choice of synonym depends on the context and the intended meaning.