1‘he was forced to dismiss his closest political ally’
associate, colleague, friend, confederate, partner, supporter, accomplice, helper, accessory, abetter
1‘he allied his racing experience with his father's business acumen’
combine, marry, couple, merge, amalgamate, join, pool, fuse, weld, knit
2‘the Catholic powers in France had allied with Philip II’
unite, join, join up, join forces, band together, go into partnership, team up, combine, collaborate, side, align oneself, league, go into league, affiliate, confederate, form an alliance, throw in one's lot, make common cause
We take a look at several popular, though confusing, punctuation marks.