Here are some commonly used terms:
Community Round — an offering when a startup lets thousands of their customers, users, & fans invest alongside VCs and angel investors.
Issuer — the company fundraising (running a "Community Round") on Wefunder.
Investment Commitment — a pledge to invest in a Community Round; it is revocable by either you or the company, subject to certain terms and conditions.
Target (or Minimum) Offering Amount — the company must reach a minimum of $50,000 for the Community Round to be considered “successful.” This is considered their first goal and is required by Wefunder. The next goal is the ultimate goal the company wants to reach. If they don't reach the goal entirely, they can still be considered successful but may ultimately choose to cancel the Community Round.