litigation (n.)

• action
• altercation
• apologetics
• apologia
• apology
• argument
• argumentation
• bicker
• bickering
• case
• casuistry
• cause
• combat
• conflict
• contention
• contentiousness
• contest
• contestation
• controversy
• debate
• defense
• disputation
• dispute
• enmity
• fighting
• hassle
• hostility
• hubbub
• lawsuit
• logomachy
• polemic
• polemics
• proceedings
• prosecution
• quarrel
• quarrelsomeness
• rhubarb
• set-to
• strife
• struggle
• suit
• war
• warfare
• words
• wrangling