Struggle
Part of speech: noun
Definition: strife, contention, great effort
Part of speech: verb
Definition: to strive, to labour in difficulty, to fight (for or against), to contend.
Example sentence: My life is a struggle.
Battle
Part of speech: verb
Definition: To join in battle; to contend in fight; as, to battle over theories.To assail in battle; to fight.
Part of speech: noun
Definition: A general action, fight, or encounter, in which all the divisions of an army are or may be engaged; an engagement; a combat.A struggle; a contest; as, the battle of life.A division of an army; a battalion.The main body, as distinct from the van and rear; battalia.
Example sentence: I think scars are like battle wounds - beautiful, in a way. They show what you've been through and how strong you are for coming out of it.