Solutions .. out (don't participate) has 15 entries with similar clues
- bidParticipate in an auction
- voteParticipate on Election Day
- asksparticipates in the q part of a q&a
- optinChoose to participate
- joustParticipate in a tourney
- buyinPay to participate
- opt-inChoose to participate/take part
- dabbleParticipate in a desultory manner
- joininparticipate
- optedinChose to participate
- opt-outChoose not to participate
- join-inParticipate with others
- drop-outCease to participate
- burnsageParticipate in a Lakota smudging ceremony
- experienceParticipate in